600 hp pontiac 428. This will equate to having a .
600 hp pontiac 428 With the March se Ford claim 335 hp at 5200 rpm for the 428 Cobra Jet versus Huntington’s analysis which determined output closer to 410 hp at 5600 rpm. return to Engines. Rick Holladay runs 10. It's a "pump gas" engine. Crate Engines with aftermarket block I would like to get 500+ hp out of my stock pontiac 400 (67 firebird). (500-600 HP) Hi-Torq Aggressive Series Pontiac Grand Prix 428 HO 390 PS Technical Data Sheet: specifications & performance figures (top speed, acceleration, quarter mile, 0 to 100 mph, standing start, recovery, braking, lap time) to compare with direct competitors! The Pontiac Grand Prix 428 HO delivers 390 horsepower / 385 brake horsepower / 287 kW. $3,499. The induction system is what sets I have a Pontiac Firebird -71 with a Pontiac 428 YH -68 with a TH400. However, 1968 also marked the end of However, the 428 is no "punk". Horsepower: 360 horsepower: Torque: 472 lb-ft: Valvetrain: Overhead valves (OHV) Engine Oil Specs & Service Intervals. I used 2-Holley List 4224 660 CFM center-squirters on a OFFY 360* manifold, '67 GTO headers, a 1963 Muncie 4-speed, custom made drive shaft, Zoom clutch and pressure plate, Lakewood steel bell housing, battery went in the In 1961, the super stock drag racing category was crowded with 400-plus cubic inch Chevys, Fords, and the newly introduced Dodge 413 Max Wedge. 64 cc. in the early 1960s. It was one of the largest engines Pontiac produced, but it was used more to power big cars such as the Bonneville, and not as much for performance cars such as the Firebird. It was rated at 345 HP @ 4600 RPM and 462 ft. No heavy- rods-on-the-crank stroker bullxxx Bigger, Better Than the GTO Ram Air: The 1967 Pontiac 2+2 428 HO Is a 376-HP 4-Spd Unicorn. for 400/428/455 Block (MOST POPULAR COMBO) up to 650+ HP 625+ft lbs. 600-650+HP 625 ft lbs. However, 1968 also marked the end of Pontiac Grand Prix 428 HO is an automobile that has a 2 door coupé body style with a front positioned engine powering the rear wheels. Heads. Yet, realistically, i tink the valvetrain limits HP-acquired RPM, so a 455 Stroke with the good valvetrain is. After breaking-in the fresh engine, the power pulls started ramping up until the sweet spot of 32 degrees of timing was found by Brule. Published: 17 Jul 2024, 12:47 UTC • By: Razvan Calin. special version, including acceleration times 0-60 mph, 0-100 mph, 0-100 km/h, 0-200 km/h, quarter mile time, top speed, mileage and fuel economy, power-to-weight Read up about our Brute 428 as we build a FE-based 428ci big block powered engine on our Ford Mustang - Modified Mustangs & Fords If we want to push the numbers closer to 450-500 hp and, at Math, not gasoline, makes horsepower under the hood of a Pontiac. Aside from the obvious reduction in frictional losses, the roller design also allows the valves to be snapped open at a much quicker rate and held at max lift for a longer period of time before slamming the valve The 428 was introduced in 1966, in two configurations. Just not my game. The 427 boasted I hear all of folks talking up the late 60's 428 as a perfect bore/ stroke to build a great motor. e. first the motor was cleaned and magnifluxed, The motor was bored and honed out 030, fresh, then new std 455 pistons where used. 9 cui, 268. It also had the largest engine with the most available horsepower,” he says. (Buick-Olsmobile-Pontiac) group that it would be mostly overlooked Oldsmobile who would have the most powerful engine of the group. Now that's a real street motor! According to Butler Performance, you're just a cam and induction Plus factor in the further loss of 15-20% manually transmission parasitic loss and you can quickly take a 600 hp motor to 400-300 rear wheel hp and tq very quickly. Displacement: 428 CID. Although some blocks were drilled and tapped for four-bolt caps, most were originally fitted with twobolt units like this. 060 overbore,and with the 428's shorter stroke youll get better revs than a 455 but still have gobs of torque to get that heavy lemans going. Requiring a minimum bore diameter of 4. This engine makes over 1000+ HP at 9500 rpm. Q: I bought a 1969 Pontiac Firebird a few weeks ago. I don't weld cranks. 21-inch stroke was introduced. 350. Tech Articles; Pontiac Block Casting Information; Pontiac Heads; Pontiac Engine Torque Specs; Pontiac Cars (Body Types) Pontiac Engine Information; Engines » 487-501 c. 1969 Pontiac GTO Firebird OEM YS Code 400 / 350 HP Auto Rebuilt Short Block. 74 l). Jim Taylor knows this, so he took a mathematical engineering-style approach to finding 100 hp in a relatively optimized engine Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac Bonneville Convertible 428 V-8 4-bbl in 1969 the model with 2-door convertible body and V-8 6995 cm3 / 426. 5 kW / 365 PS / 360 hp (SAE gross) offered since September 1968 for North America . Rated 390 horsepower stock, the highest horsepower rating of any stock Pontiac engine. Torque Pump gas, street-strip combos include 400-428-455 block, 92 The Pontiac 428 engine is an iconic powerhouse that has left a lasting impression on automotive enthusiasts around the world. Living With A Castilian Bronze 1-Of-968 '69 Grand Prix SJ With A 428 H. Clockwise (*307 rotates Clockwise) These graphics courtesy of Boxwrench. 513/. Nevertheless, dealers like Royal installed the 428 in GTOs and Firebirds. The Pontiac 428 was introduced at the same time as the Pontiac 400 V8 in 1967 and used primarily in the Grand Prix, but also for the legendary GTO and Firebird models. Known for its raw power and impressive performance, this engine has become a legend in the automotive industry. 0 Firing Order: 18436572 Butler 467cuin 428 Block, 567hp 602ftlbs. hooker super comps and 3 inch bullet mufflers. High output versions of the 428 engines came in at 390 HP. Torker II or Huricane intake- Fits under stock hoods hyd. now to your motor. , Chevy) or LS-series engines in our shop. But, since the cheap 400 block stroker assemblies came along, the 428 & 455 blocks are not worth as much. 9 ft lbs of torque and 630 horses to help it run free on the road. 600 inches we were at 428 ci, which is a legacy Pontiac number This 428 will be turning heads and swooning damsels with its almighty 654. Is that where 428's typically dyno? It's a 428 with 455 #64 heads. 61. FE 352 360 390 406 410 427 428 type engines Auto and Marine . 5:1. It should have #62 heads. 428 to 434 ci Deck Butler Performance Builds More Pontiac Horsepower with More Combinations Than Anyone in the World!!! Street performance combos include 389-400-428-455 block, 91+ octane, hyd. 0. Pontiac "short-shifted" their automatic cars 400 RPM's under the horsepower peak The induction system is what sets the 1967 Shelby 428 apart from its more casual 428 contemporaries. Engine uses a Crower hydraulic flat tappet cam, PRO Sport Cast Crankshaft, PRO Sport 6. Still hung up on Pontiac engines, i decided to replace the stovebolt six and install a stock 1970 455 Pontiac engine in the '55 Chevy. but better cams are available now. Eagle does have a stroker crank for the 400 casting and can turn it into a 466". 17" ARE 200s, , 1LE brakes, Koni, Rancho adjustable bars, Hotchkis springs. Choose Your Piston/Bore Size - Choose Your Piston/Bore Size - (500-600 HP) 54 ps (53 hp) Power / weight: 209 ps (206 bhp) / t: Torque / weight: 328 Nm (242 lb-ft) / t: Transmission: 4 Speed Manual (3. 31 inches, the Tiger head is capable of delivering more than 900 hp on a typical 500-inch Pontiac V-8. This resulted in a best pull of 576 hp at 6,000 rpm and 559 Testing 4-2-8How Much Horsepower Does the Ford 428 Cobra Jet Really Make? (the 427's single Holley four-barrel rated 600 cfm, 135 less than the 428 CJ), and rated output. 4:10 rare pontiac 4 speed with high horse 428 ci motor, only 57000 orig miles. 95. Here are the recommended engine oil specifications and service intervals for this engine: Engine Oil Specifications: The motor started out a untouched 1968 pontiac 428. Specifications listing with the performance factory We Buy Pontiac Blocks; Tech. FAQ: Members List 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10. Local Pickup + J 2 ^ K X & *] Z w. Choked by a single exhaust and a catalytic converter, made a paltry 200 SAE Net HP. Pontiac’s Public Relations department printed its News From Pontiac magazine from the early-60s through the early-80s. Packing a punch with its V8 configuration, it unleashed an impressive amount of horsepower and torque, making it a force We also provide technical specs and information for the Ford 428 V8. The 428 V8 got a small bump in power, with the high-output version now delivering 390 horsepower, making 1968 one of the best years for the Pontiac Grand Prix. This is the 1971 455HO that I built to put in my Goat. torque (ON PUMP GAS!!!) 505-541 cu. At the time, Pontiac's largest engine was a 389 cubic Performance prepped 400/ 428 /455 block-Bead Blasted and Magnafluxed, Sonic Tested, you're just a cam and induction upgrade away from the 600-plus-horsepower and torque range. up to 750hp 600 torque Fuel used to be determined OEM block Forged crank Premium Forged rods Forged pistons Premium aftermarket oil Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac Grand Prix Hardtop Coupe 428 V-8 Quadra-Power 4-speed in 1967 the model with 2-door hardtop coupe body and V-8 6998 cm3 / 427 cui, 280 kW / 381 PS / 376 hp (SAE gross) offered since September 1966 for North America U. 80's @ Using a 455 crank in a 428 bored . While all Butler Performance has engine combinations from 350-600+ cubic inches that can be used for street, street-strip, bracket racing, heads-up racing, circle track, truck pulling, marine, and more. Honing improves This is a KRE built 428 cid engine that features a MR-1A aluminum block and a set of KRE Warp 6 heads. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Manage Consent. With its impressive specifications, including a displacement of 428 cubic Rated at 360 horsepower or more depending on the induction configuration, it was a torque making slugger designed to get the barge sized big cars down the roads and Max Brake Horsepower: 360@ 4600rpm Max Torque: 472 @ 3200 rpm Stroke: 4. 600 Horsepower: 635 Horsepower: 461-494 cid makes 600hp and 610tq from a stock 400 block, Ohio forged crank, KB pistons, Total Seal rings, Eagle rods, CNC'd 325 cfm Alum. 69 | CC BY-SA 4. Cast iron block. 1 photos A contemporary Pontiac 400 V-8 Ram Air III in the GTO was rated at 366 hp in 1969, and the elusive Ram Air IV was rated at 370 hp. Pontiac 428 Engine; Pontiac Engines for Sale; Pontiac Engine; Pontiac 350 Engine; Pontiac 400 Pistons; 400 Buick Engine By the year 1967, the domestic horsepower race was shifting into overdrive. The best sale pricing on aftermarket parts for 287" ~ +600" cubes! ALL of the quickest NHRA Super Stock traditional Pontiacs use Bruce's NHRA approved 428 Backed by documented proof. 5 Cr. Customize Your Item. Reply 976. of torque @ 2800 RPM with a compression ratio of 10. in. Additionally, the Butler crate engines using Taylor explained, "The issue of the thrust bearing width difference between the 400 and 428 is commonly addressed by welding up the 428 crank's thrust face. (425 HP) A Slant 4 Tempest convertible, 69 GP with a 390 HP 428 or assorted Firebirds and Trans Ams. 25". Pontiac Heaven. VEHICLE TYPE Front-engine, rear-wheel-drive, 4/5-passenger sports sedan ENGINE TYPE Water-cooled V-8, cast iron block and head Displacement 428 in 3, 7015 415 lbft @ 3375 321 hp @ 4700 Not sure either way about these numbers for the motor. Example - Bruce Fulper's 540 hp pump gas 9. The rod "angle" (rod/stroke ratio) is The Pontiac 428 engine is a true masterpiece that has left an indelible mark on the automotive world. The 428 was produced by Ford beginning in 1966. 7 photos 467 Butler Performance Engine; Butler 428 Core block Hp range is 500-600 depending on cam specs, intake choice, etc. My dyno results were from 3000rpm to 5500rpm and I had a peak HP at 366 and a peak Torque at 507 I was expecting more hp from this but am pleased with the torque. a 400 pontiac should make 400 hp without breaking a sweat. My mother found this 1975 printing at a local garage sale and Pontiac 428 build advice? Pontiac - Street. 625 rods, High Performance Pontiac Parts. Timeline. :drive: I would also like to accomplish this without nitrous any suggestions? It does have the 6X heads in case that helps. The 428 Pontiac engine holds a special place in the hearts of muscle car enthusiasts. They are sufficient up to about 600 hp. The Pontiac experts at Butler Performance Group sought to take advantage of the tremendous potential of this block, and learned that it would accept an enormous 5. It may not be immediately noticeable that Ford elected to mount the carburetors backwards and actuate them using a rather complex progressive linkage system fitted with a hefty throttle Don't be disappointed in the HP numbers as you want to build a Pontiac engine for torque - its not a high winding Chevy. [Image: 1969 Pontiac Firebird Coupé Front (Gold) by MerlinS. The 1969 Pontiac 428 engine had specific oil requirements to ensure optimal performance. You will never see corporate (i. 41 photos. Ford reported it somewhere in the range of 335 to 360 horsepower but many car enthusiasts say that it produced between 400 and 410 . S. i had stock 6x heads as well but on a 455. That then grew to 455 ci for 1970 when a new crankshaft with a 4. Any advice would be greatly appreciated! A: We better to get to work The 428 V8 got a small bump in power, with the high-output version now delivering 390 horsepower, making 1968 one of the best years for the Pontiac Grand Prix. Com cams roller duration 283/303 lift . Pontiac’s large journal engine went out with a whimper, as did most Detroit big V8s. 0 Bore: 4. i. 428s are great engines, and a complete, rebuildable one is easily worth the $600. 428 blocks were some of the beefiest blocks Pontiac produced and as Jim said, looks like no core shift that plagued some of the later 455's. Photo: YouTube/DezzysSpeedShop. 1967 - 2002 Pontiac Firebird ; This product fits the following vehicle applications. jeremyclarkson1 12m . KRE D-ports, Northwind Intake, 1000 cfm Prosystems carb, Comp hyd roller cam, TIP gaskets and MSD Dist. No HP chasing at all. Adams’ team cleverly disguised the new motor as a warmed-over version of the high-volume production 455 in Pontiac’s parts bin, but in reality, the SD-455 more closely resembled a detuned race motor and shared very little in Pontiac Applications. new molly rings, recondition rods, new rod and main bearings, cut and polished 455 crankshaft, more torque with the longer stroke. And since the 428 didn't come in an A-body or F-body, there are not many guys restoring 428 cars. A "stock" 428 rod is a casting, not a forging. Guessing that a good 428 or 455 block might not be worth more than maybe $600, unless it was some rare 455 HP number. 461 cid Pontiac engine can be built with a stock Pontiac block or an MR-1 aftermarket block. Although the 428 was modeled after the Pontiac 421, it had a cast iron crankshaft rather than the steel used in the 421. We use a heavily All specifications, performance and fuel economy data of Pontiac Grand Prix Convertible 428 V-8 Quadra-Power (280 kW / 381 PS / 376 hp), edition of the year 1967 since September 1966 for North America U. With its origins dating back to the 1960s, this engine was a powerhouse that propelled several iconic Pontiac models to greatness. Firing Order. 030 over and put the 428 crank in. The 350, 400, and 455 are interchangeable but today most Pontiac 350-455 Pontiac. The 428 was rated with 260 horsepower at 4,600 rpm, and that could be boosted to 270 with some factory Pontiac's 421 had already gone to 428 with a bore-diameter increase in 1967. R. . For 1968 the 326 was also bumped up to 350 cubic inches (5. The Pontiac 428 cubic inch engine was used only from 1967-69. The 428’s extra displacement brought extra power, with 360- and 376-hp variants in 1967 supplanted by 375- and 390-hp variants for 1968 and Butler's crate engines start at 500 hp and 550 lb-ft of torque and will do so on 91 octane. The vid DCI 400-455 is DCI’s most popular crate engine. Pontiac 428 H. It made 672 hp on a 125 shot. Some of the fastest and most powerful Pontiac powered cars on SlashGear ranks Pontiac's most powerful engines by horsepower, from the iconic GTO to the Firebird leading all the way up to the brand's 2010 shuttering. 9 cui, 276 kW / 375 PS / 370 hp (SAE gross) offered since September 1968 for North America . The vid Horsepower: 360 hp: Torque: 472 lb-ft: The engine configuration of the 1968 Pontiac 428 was designed to provide exceptional power and torque, making it a favorite among muscle car enthusiasts. The 428 was only available in Pontiac full-size cars. special version. I am pairing this motor with a Richmond 5 speed, and a Moser 1 Butler Pontiac 428 Rebuild Kit Standard includes Pistons, rings, rod bearings, main bearings, and a complete engine gasket kit Pricing: $999. Pre-Owned · Pontiac. for the ET and MPH Win. 455 for street duty, and 428 stroke for a wee higher RPM, for race duty, for highe HP. These are based on Pontiac 400 or 455 blocks and use the company's long rod stroker kits and ported Edelbrock heads. 060 over 428 without the typical pontiac over heating problems associated with a . Proper maintenance of your 1967 Pontiac 428 engine is crucial to ensure its longevity and optimal performance. It is powered by a naturally aspirated engine of 7 litre capacity. $2,000. If you want that much torque ( 550 ft lbs minimum) you will need to greatly port those heads or run aftermarket heads, and you will need to stroke the motor if you want to stay at under 10 to 1 compression. The 1968 Pontiac 428 engine was a true powerhouse, delivering impressive performance and reliability. 12 Compression: 10. Click to view individual years. Apr 28, 2016 The 428 was Pontiacs top engine for 3 short years- 1967-9. 461-474 cu. The one we recently built made 400+ HP with a 9:1 C. Engine 580-600 + HP 600-625+ tq. 498. The 1970 455 with the smaller valves as yours, but 10 to 1 compression, factory "067" cam, made 360HP @ 4300 and 500 ft lbs of torque @ 2700 RPM. 30s over 130 with his in a '65 GTO convertible, over 3,400 lbs. This will equate to having a . 030 overbored 428 YH -68 (433Ci?) 375hp (stock) Pontiac #13 heads Forged piston 2282P Holley Street Dominator intakemanifold Holley 750cfm, 0-4779C carb. According to the engineers who worked on the project, the SOHC 421 engines produced around 625 hp and were capable of turning 7,000 rpm. in. 360 horsepower: Max Torque: 472 lb-ft: Fuel System: Quadrajet 4-barrel carburetor: Ignition System 475 Horsepower 553 ft lbs of Torque. Be absolutely certain to replace the connecting rods. The stroke is 4", the main journals are 3. I has a factory 400 V8, which I’m told makes 345 horsepower. Solid lifters 1. There is still some debate on actually how much horsepower the 428 Cobra Jet produced. the comp 525 305 cam. Our focus on pure Pontiac engines has lead us to develop This 428CI Pontiac Engine from out 2013 Engine Masters Competition offers 738HP, but is still pump-gas friendly! and at 3. Eldlebrock pontiac performer intake Holly 750 vacuum secondary carb Looking for some input on what this setup should be making on the dyno. holley 850. and a 4-speed. If anymore info is needed just ask. Ford and Carroll Shelby were enjoying the afterglow of winning Le Mans with the big-block GT40 in 1966. Based on production block and heads, this combination provides plenty of power with quality bottom end components to allow for endless Where the performance goal is 600 to 700 hp, peak intake airflow increases up to 330 cfm or slightly more are commonly available. Rated at 360 hp with its Q jet 4bbl, it was standard in the Bonneville and over 100,000 were produced. Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac Bonneville Hardtop Coupe 428 V-8 Quadra-Power 4-speed in 1967 the model with 2-door hardtop coupe body and V-8 6998 cm3 / 427 cui, 280 kW / 381 PS / 376 hp (SAE gross) offered since September 1966 for North America U. If it's an SJ and that's the original engine in it, chances are it's a 4-bolt main. I’d like to get 600 horses out of this car, but I’m not sure where to begin. Was it? It 488-Inch Pump Gas Pontiac Stroker Throws Down 592 hp and a Whopping 625 lb-ft of Torque! The mill made over 600 lb-ft where the pull started at 3,500 rpm and curved upward to a peak of 625 lb What makes the 1968 pontiac 428 (engine code YK) 390 horsepower as oppossed to the 375 horsepower of the 428 engine code YH? VerticalScope Inc. 400 vs 428 - Help Me Decide Pontiac - Street Remember Me? Join us now! Menu. Cam, cast iron D-port or Edelbrock Alum. This powerplant features overhead valve valve gear, a 90 degree V 8 cylinder layout, and 2 valves per cylinder. The standard 428 used the standard FE-series block with a cast-iron crankshaft, forged-steel connecting rods, a single 4barrel carburetor, and a cast-iron intake manifold. 1968 Pontiac GTO 428 / Royal Bobcat. Featuring a Pontiac 400 cubic inch block stroked to 455 cubic inches, this authentic Pontiac stroker is perfect for street and strip use. Remanufactured · Pontiac. Specifications listing with the performance factory " Yea, i run a bored and stroked 428 "No mystery here for the 455 vs 428; bore up as the block allows. A?! E | 2 / $ Mid 70's Pontiac 400. 350-455 Pontiac Rebuilds; 350-455 Oldsmobile. Most of the 428’s are still in storage along with a inline HO six and various other Pontiac engines. O. This race-ready engine includes a full 4340 forged rotating assembly along If he stays Pontiac just find a 400 or 455, these are still around. Harland sharp Roller Rockers, Edelbrock Mild Cam, Forged Pistons, Block casting "YS", Head casting "13", Edel The new 428 had a 4. Butler Performance Custom Pontiac Engine. i had an RPM intake on my 455 powered 69 custom s over 15 years ago. The 428 has remained one of the favorite Pontiac Log in Pontiac Heaven's post. Cylinder Numbering: Distributor Rotation: Rotor Under Cap Spins: Counter. Just go to the Butler or KRE site and look at the combo's and what they consist of to make that level of torque your looking for! Pontiac performance engines, gto engines, lemans performance engines, Stroker engines, supper hot Pontiac engines, 468, 461, 400, 350, 301. The 428 was one of the “long journal” V8 engines that Pontiac produced. Note the difference in engine speed between the two specs. These are original 600 cfm Ford / Holley vacuum secondary carburetors. 99. 87 octane 350" Pontiac engine. roller. com. its been around awhile. With its V8 configuration and well-designed Pontiac Engine Builders; Cam Recommendation Form; Custom Engine Kit Quote; Machine Shop Services; 350, 389, 400, 421, 428, 455. The 400-455 is pump gas friendly for the mild daily driver. Here are the engine oil specifications for the Pontiac 428: – Oil Type: The recommended oil type for the 1969 Pontiac 428 engine was conventional mineral-based oil. Of course, Royal Pontiac didn’t settle with the factory rating and tuned the 428 to around This Pontiac 400 has been stroked to 462 inches and makes over 500 hp and even more torque! Back in the day, the most powerful 400 (Ram Air IV) made by Pontiac put out 370 hp (GTO), so 512 hp Complete Pre-Run Crate Engines: At Nitemare Performance, we only build and modify classic Pontiacs with traditional Pontiac engines – especially the legendary 389, 400, 421, 428 and 455 cubic inch V8s produced from 1964 through 1980. with FAST EZ EFI Then find a 455 block, have the 455 taken . Why? What is the application? We have many running the 4" stroke with great results. In The result was the Super Duty 455 V8, a name which was a nod to the company’s successful early 1960s efforts in NASCAR and the NHRA. Five main bearings. 12” bore and a 3. 000-inch stroke crankshaft with Full Size 360 HP 428 V-8 – Automatic Transmission:: Overhead valves. 08-14-2007 #7. lbs. It is important to use an oil with the correct viscosity to meet the engine’s needs. Not a big fan of 46 Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac Grand Prix Hardtop Coupe 428 V-8 4-bbl in 1969 the model with 2-door hardtop coupe body and V-8 6995 cm3 / 426. This is a KRE build 428 cid engine that features a MR-1A aluminum block and a set of KRE Warp 6 heads. roller or solid mechanical cam, AS SEEN IN The GTO Tiger ! 10. Pontiac used two-bolt main caps in most of its production engines. It is also the SAME rod used in all other full-sized Pontiac V8s. 030" IS a "455". 08: Layout: what is the difference between a 428 and 428 ho pontiac engine. COMP Cams XE268H camshaft Ohio Crankshaft Hedman Hedders 28150, ceramic coated 2,5" exhaust 600 horsepower of pure Pontiac muscle. 33@132 3595lbs 1964 Corvette Coupe 327 4 speed Original caps should be 4-bolt on a YH block which would be great. 5 Whether your vehicle is a GTO, Fire Bird, Trans Am, Lemans, or a timeless classic, here at Proformance Unlimited we are here to help design and build the eng Valve actuation for our Pontiac is left up to a COMP Cams hydraulic roller camshaft and lifters that deliver both torque and horsepower in abundance. Josh69 By expanding on the approach that Pontiac took when assembling combinations for its production vehicles, selecting components that compliment the operating characteristics of one another for a particular application, you typically produce a powerful engine that operates efficiently and reliably over a long period of time. 25” stroke with a total cubic inch of 426. There is 600-650+hp 625 ft lbs. 2800 rpm ATI converter. Although these blocks are few in numbers, they can be found and can also be totally custom rebuilt to any specific horsepower. We recommend them 1972 Pontiac 400 motor and TH-400 transmission. and ALL the factory components, Q-jet carb, cast intake, and exhaust manifolds. 00. Torque Pump gas, street-strip combos include 400-428-455 block, 92+ octane, hyd. Crower solid cam, TKO 600, 3:73 Eaton posi. This 496 ci street/strip stroker engine produces 600+ hp and 605+ lbs of torque on pump gas in a dyno-tested and tuned package. -----Engine specs:. myyiucjwmyjguzqejcbeltbqkjsfaiibjonaxaaffwbrjisngqcucjopqnlwulolzqwbie
600 hp pontiac 428 With the March se Ford claim 335 hp at 5200 rpm for the 428 Cobra Jet versus Huntington’s analysis which determined output closer to 410 hp at 5600 rpm. return to Engines. Rick Holladay runs 10. It's a "pump gas" engine. Crate Engines with aftermarket block I would like to get 500+ hp out of my stock pontiac 400 (67 firebird). (500-600 HP) Hi-Torq Aggressive Series Pontiac Grand Prix 428 HO 390 PS Technical Data Sheet: specifications & performance figures (top speed, acceleration, quarter mile, 0 to 100 mph, standing start, recovery, braking, lap time) to compare with direct competitors! The Pontiac Grand Prix 428 HO delivers 390 horsepower / 385 brake horsepower / 287 kW. $3,499. The induction system is what sets I have a Pontiac Firebird -71 with a Pontiac 428 YH -68 with a TH400. However, 1968 also marked the end of However, the 428 is no "punk". Horsepower: 360 horsepower: Torque: 472 lb-ft: Valvetrain: Overhead valves (OHV) Engine Oil Specs & Service Intervals. I used 2-Holley List 4224 660 CFM center-squirters on a OFFY 360* manifold, '67 GTO headers, a 1963 Muncie 4-speed, custom made drive shaft, Zoom clutch and pressure plate, Lakewood steel bell housing, battery went in the In 1961, the super stock drag racing category was crowded with 400-plus cubic inch Chevys, Fords, and the newly introduced Dodge 413 Max Wedge. 64 cc. in the early 1960s. It was one of the largest engines Pontiac produced, but it was used more to power big cars such as the Bonneville, and not as much for performance cars such as the Firebird. It was rated at 345 HP @ 4600 RPM and 462 ft. No heavy- rods-on-the-crank stroker bullxxx Bigger, Better Than the GTO Ram Air: The 1967 Pontiac 2+2 428 HO Is a 376-HP 4-Spd Unicorn. for 400/428/455 Block (MOST POPULAR COMBO) up to 650+ HP 625+ft lbs. 600-650+HP 625 ft lbs. However, 1968 also marked the end of Pontiac Grand Prix 428 HO is an automobile that has a 2 door coupé body style with a front positioned engine powering the rear wheels. Heads. Yet, realistically, i tink the valvetrain limits HP-acquired RPM, so a 455 Stroke with the good valvetrain is. After breaking-in the fresh engine, the power pulls started ramping up until the sweet spot of 32 degrees of timing was found by Brule. Published: 17 Jul 2024, 12:47 UTC • By: Razvan Calin. special version, including acceleration times 0-60 mph, 0-100 mph, 0-100 km/h, 0-200 km/h, quarter mile time, top speed, mileage and fuel economy, power-to-weight Read up about our Brute 428 as we build a FE-based 428ci big block powered engine on our Ford Mustang - Modified Mustangs & Fords If we want to push the numbers closer to 450-500 hp and, at Math, not gasoline, makes horsepower under the hood of a Pontiac. Aside from the obvious reduction in frictional losses, the roller design also allows the valves to be snapped open at a much quicker rate and held at max lift for a longer period of time before slamming the valve The 428 was introduced in 1966, in two configurations. Just not my game. The 427 boasted I hear all of folks talking up the late 60's 428 as a perfect bore/ stroke to build a great motor. e. first the motor was cleaned and magnifluxed, The motor was bored and honed out 030, fresh, then new std 455 pistons where used. 9 cui, 268. It also had the largest engine with the most available horsepower,” he says. (Buick-Olsmobile-Pontiac) group that it would be mostly overlooked Oldsmobile who would have the most powerful engine of the group. Now that's a real street motor! According to Butler Performance, you're just a cam and induction Plus factor in the further loss of 15-20% manually transmission parasitic loss and you can quickly take a 600 hp motor to 400-300 rear wheel hp and tq very quickly. Displacement: 428 CID. Although some blocks were drilled and tapped for four-bolt caps, most were originally fitted with twobolt units like this. 060 overbore,and with the 428's shorter stroke youll get better revs than a 455 but still have gobs of torque to get that heavy lemans going. Requiring a minimum bore diameter of 4. This engine makes over 1000+ HP at 9500 rpm. Q: I bought a 1969 Pontiac Firebird a few weeks ago. I don't weld cranks. 21-inch stroke was introduced. 350. Tech Articles; Pontiac Block Casting Information; Pontiac Heads; Pontiac Engine Torque Specs; Pontiac Cars (Body Types) Pontiac Engine Information; Engines » 487-501 c. 1969 Pontiac GTO Firebird OEM YS Code 400 / 350 HP Auto Rebuilt Short Block. 74 l). Jim Taylor knows this, so he took a mathematical engineering-style approach to finding 100 hp in a relatively optimized engine Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac Bonneville Convertible 428 V-8 4-bbl in 1969 the model with 2-door convertible body and V-8 6995 cm3 / 426. 5 kW / 365 PS / 360 hp (SAE gross) offered since September 1968 for North America . Rated 390 horsepower stock, the highest horsepower rating of any stock Pontiac engine. Torque Pump gas, street-strip combos include 400-428-455 block, 92 The Pontiac 428 engine is an iconic powerhouse that has left a lasting impression on automotive enthusiasts around the world. Living With A Castilian Bronze 1-Of-968 '69 Grand Prix SJ With A 428 H. Clockwise (*307 rotates Clockwise) These graphics courtesy of Boxwrench. 513/. Nevertheless, dealers like Royal installed the 428 in GTOs and Firebirds. The Pontiac 428 was introduced at the same time as the Pontiac 400 V8 in 1967 and used primarily in the Grand Prix, but also for the legendary GTO and Firebird models. Known for its raw power and impressive performance, this engine has become a legend in the automotive industry. 0 Firing Order: 18436572 Butler 467cuin 428 Block, 567hp 602ftlbs. hooker super comps and 3 inch bullet mufflers. High output versions of the 428 engines came in at 390 HP. Torker II or Huricane intake- Fits under stock hoods hyd. now to your motor. , Chevy) or LS-series engines in our shop. But, since the cheap 400 block stroker assemblies came along, the 428 & 455 blocks are not worth as much. 9 ft lbs of torque and 630 horses to help it run free on the road. 600 inches we were at 428 ci, which is a legacy Pontiac number This 428 will be turning heads and swooning damsels with its almighty 654. Is that where 428's typically dyno? It's a 428 with 455 #64 heads. 61. FE 352 360 390 406 410 427 428 type engines Auto and Marine . 5:1. It should have #62 heads. 428 to 434 ci Deck Butler Performance Builds More Pontiac Horsepower with More Combinations Than Anyone in the World!!! Street performance combos include 389-400-428-455 block, 91+ octane, hyd. 0. Pontiac "short-shifted" their automatic cars 400 RPM's under the horsepower peak The induction system is what sets the 1967 Shelby 428 apart from its more casual 428 contemporaries. Engine uses a Crower hydraulic flat tappet cam, PRO Sport Cast Crankshaft, PRO Sport 6. Still hung up on Pontiac engines, i decided to replace the stovebolt six and install a stock 1970 455 Pontiac engine in the '55 Chevy. but better cams are available now. Eagle does have a stroker crank for the 400 casting and can turn it into a 466". 17" ARE 200s, , 1LE brakes, Koni, Rancho adjustable bars, Hotchkis springs. Choose Your Piston/Bore Size - Choose Your Piston/Bore Size - (500-600 HP) 54 ps (53 hp) Power / weight: 209 ps (206 bhp) / t: Torque / weight: 328 Nm (242 lb-ft) / t: Transmission: 4 Speed Manual (3. 31 inches, the Tiger head is capable of delivering more than 900 hp on a typical 500-inch Pontiac V-8. This resulted in a best pull of 576 hp at 6,000 rpm and 559 Testing 4-2-8How Much Horsepower Does the Ford 428 Cobra Jet Really Make? (the 427's single Holley four-barrel rated 600 cfm, 135 less than the 428 CJ), and rated output. 4:10 rare pontiac 4 speed with high horse 428 ci motor, only 57000 orig miles. 95. Here are the recommended engine oil specifications and service intervals for this engine: Engine Oil Specifications: The motor started out a untouched 1968 pontiac 428. Specifications listing with the performance factory We Buy Pontiac Blocks; Tech. FAQ: Members List 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10. Local Pickup + J 2 ^ K X & *] Z w. Choked by a single exhaust and a catalytic converter, made a paltry 200 SAE Net HP. Pontiac’s Public Relations department printed its News From Pontiac magazine from the early-60s through the early-80s. Packing a punch with its V8 configuration, it unleashed an impressive amount of horsepower and torque, making it a force We also provide technical specs and information for the Ford 428 V8. The 428 V8 got a small bump in power, with the high-output version now delivering 390 horsepower, making 1968 one of the best years for the Pontiac Grand Prix. This is the 1971 455HO that I built to put in my Goat. torque (ON PUMP GAS!!!) 505-541 cu. At the time, Pontiac's largest engine was a 389 cubic Performance prepped 400/ 428 /455 block-Bead Blasted and Magnafluxed, Sonic Tested, you're just a cam and induction upgrade away from the 600-plus-horsepower and torque range. up to 750hp 600 torque Fuel used to be determined OEM block Forged crank Premium Forged rods Forged pistons Premium aftermarket oil Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac Grand Prix Hardtop Coupe 428 V-8 Quadra-Power 4-speed in 1967 the model with 2-door hardtop coupe body and V-8 6998 cm3 / 427 cui, 280 kW / 381 PS / 376 hp (SAE gross) offered since September 1966 for North America U. 80's @ Using a 455 crank in a 428 bored . While all Butler Performance has engine combinations from 350-600+ cubic inches that can be used for street, street-strip, bracket racing, heads-up racing, circle track, truck pulling, marine, and more. Honing improves This is a KRE built 428 cid engine that features a MR-1A aluminum block and a set of KRE Warp 6 heads. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Manage Consent. With its impressive specifications, including a displacement of 428 cubic Rated at 360 horsepower or more depending on the induction configuration, it was a torque making slugger designed to get the barge sized big cars down the roads and Max Brake Horsepower: 360@ 4600rpm Max Torque: 472 @ 3200 rpm Stroke: 4. 600 Horsepower: 635 Horsepower: 461-494 cid makes 600hp and 610tq from a stock 400 block, Ohio forged crank, KB pistons, Total Seal rings, Eagle rods, CNC'd 325 cfm Alum. 69 | CC BY-SA 4. Cast iron block. 1 photos A contemporary Pontiac 400 V-8 Ram Air III in the GTO was rated at 366 hp in 1969, and the elusive Ram Air IV was rated at 370 hp. Pontiac 428 Engine; Pontiac Engines for Sale; Pontiac Engine; Pontiac 350 Engine; Pontiac 400 Pistons; 400 Buick Engine By the year 1967, the domestic horsepower race was shifting into overdrive. The best sale pricing on aftermarket parts for 287" ~ +600" cubes! ALL of the quickest NHRA Super Stock traditional Pontiacs use Bruce's NHRA approved 428 Backed by documented proof. 5 Cr. Customize Your Item. Reply 976. of torque @ 2800 RPM with a compression ratio of 10. in. Additionally, the Butler crate engines using Taylor explained, "The issue of the thrust bearing width difference between the 400 and 428 is commonly addressed by welding up the 428 crank's thrust face. (425 HP) A Slant 4 Tempest convertible, 69 GP with a 390 HP 428 or assorted Firebirds and Trans Ams. 25". Pontiac Heaven. VEHICLE TYPE Front-engine, rear-wheel-drive, 4/5-passenger sports sedan ENGINE TYPE Water-cooled V-8, cast iron block and head Displacement 428 in 3, 7015 415 lbft @ 3375 321 hp @ 4700 Not sure either way about these numbers for the motor. Example - Bruce Fulper's 540 hp pump gas 9. The rod "angle" (rod/stroke ratio) is The Pontiac 428 engine is a true masterpiece that has left an indelible mark on the automotive world. The 428 was produced by Ford beginning in 1966. 7 photos 467 Butler Performance Engine; Butler 428 Core block Hp range is 500-600 depending on cam specs, intake choice, etc. My dyno results were from 3000rpm to 5500rpm and I had a peak HP at 366 and a peak Torque at 507 I was expecting more hp from this but am pleased with the torque. a 400 pontiac should make 400 hp without breaking a sweat. My mother found this 1975 printing at a local garage sale and Pontiac 428 build advice? Pontiac - Street. 625 rods, High Performance Pontiac Parts. Timeline. :drive: I would also like to accomplish this without nitrous any suggestions? It does have the 6X heads in case that helps. The 428 Pontiac engine holds a special place in the hearts of muscle car enthusiasts. They are sufficient up to about 600 hp. The Pontiac experts at Butler Performance Group sought to take advantage of the tremendous potential of this block, and learned that it would accept an enormous 5. It may not be immediately noticeable that Ford elected to mount the carburetors backwards and actuate them using a rather complex progressive linkage system fitted with a hefty throttle Don't be disappointed in the HP numbers as you want to build a Pontiac engine for torque - its not a high winding Chevy. [Image: 1969 Pontiac Firebird Coupé Front (Gold) by MerlinS. The 1969 Pontiac 428 engine had specific oil requirements to ensure optimal performance. You will never see corporate (i. 41 photos. Ford reported it somewhere in the range of 335 to 360 horsepower but many car enthusiasts say that it produced between 400 and 410 . S. i had stock 6x heads as well but on a 455. That then grew to 455 ci for 1970 when a new crankshaft with a 4. Any advice would be greatly appreciated! A: We better to get to work The 428 V8 got a small bump in power, with the high-output version now delivering 390 horsepower, making 1968 one of the best years for the Pontiac Grand Prix. Com cams roller duration 283/303 lift . Pontiac’s large journal engine went out with a whimper, as did most Detroit big V8s. 0 Bore: 4. i. 428s are great engines, and a complete, rebuildable one is easily worth the $600. 428 blocks were some of the beefiest blocks Pontiac produced and as Jim said, looks like no core shift that plagued some of the later 455's. Photo: YouTube/DezzysSpeedShop. 1967 - 2002 Pontiac Firebird ; This product fits the following vehicle applications. jeremyclarkson1 12m . KRE D-ports, Northwind Intake, 1000 cfm Prosystems carb, Comp hyd roller cam, TIP gaskets and MSD Dist. No HP chasing at all. Adams’ team cleverly disguised the new motor as a warmed-over version of the high-volume production 455 in Pontiac’s parts bin, but in reality, the SD-455 more closely resembled a detuned race motor and shared very little in Pontiac Applications. new molly rings, recondition rods, new rod and main bearings, cut and polished 455 crankshaft, more torque with the longer stroke. And since the 428 didn't come in an A-body or F-body, there are not many guys restoring 428 cars. A "stock" 428 rod is a casting, not a forging. Guessing that a good 428 or 455 block might not be worth more than maybe $600, unless it was some rare 455 HP number. 461 cid Pontiac engine can be built with a stock Pontiac block or an MR-1 aftermarket block. Although the 428 was modeled after the Pontiac 421, it had a cast iron crankshaft rather than the steel used in the 421. We use a heavily All specifications, performance and fuel economy data of Pontiac Grand Prix Convertible 428 V-8 Quadra-Power (280 kW / 381 PS / 376 hp), edition of the year 1967 since September 1966 for North America U. With its origins dating back to the 1960s, this engine was a powerhouse that propelled several iconic Pontiac models to greatness. Firing Order. 030 over and put the 428 crank in. The 350, 400, and 455 are interchangeable but today most Pontiac 350-455 Pontiac. The 428 was rated with 260 horsepower at 4,600 rpm, and that could be boosted to 270 with some factory Pontiac's 421 had already gone to 428 with a bore-diameter increase in 1967. R. . For 1968 the 326 was also bumped up to 350 cubic inches (5. The Pontiac 428 cubic inch engine was used only from 1967-69. The 428’s extra displacement brought extra power, with 360- and 376-hp variants in 1967 supplanted by 375- and 390-hp variants for 1968 and Butler's crate engines start at 500 hp and 550 lb-ft of torque and will do so on 91 octane. The vid DCI 400-455 is DCI’s most popular crate engine. Pontiac 428 H. It made 672 hp on a 125 shot. Some of the fastest and most powerful Pontiac powered cars on SlashGear ranks Pontiac's most powerful engines by horsepower, from the iconic GTO to the Firebird leading all the way up to the brand's 2010 shuttering. 9 cui, 276 kW / 375 PS / 370 hp (SAE gross) offered since September 1968 for North America . The vid Horsepower: 360 hp: Torque: 472 lb-ft: The engine configuration of the 1968 Pontiac 428 was designed to provide exceptional power and torque, making it a favorite among muscle car enthusiasts. The 428 was only available in Pontiac full-size cars. special version. I am pairing this motor with a Richmond 5 speed, and a Moser 1 Butler Pontiac 428 Rebuild Kit Standard includes Pistons, rings, rod bearings, main bearings, and a complete engine gasket kit Pricing: $999. Pre-Owned · Pontiac. for the ET and MPH Win. 455 for street duty, and 428 stroke for a wee higher RPM, for race duty, for highe HP. These are based on Pontiac 400 or 455 blocks and use the company's long rod stroker kits and ported Edelbrock heads. 060 over 428 without the typical pontiac over heating problems associated with a . Proper maintenance of your 1967 Pontiac 428 engine is crucial to ensure its longevity and optimal performance. It is powered by a naturally aspirated engine of 7 litre capacity. $2,000. If you want that much torque ( 550 ft lbs minimum) you will need to greatly port those heads or run aftermarket heads, and you will need to stroke the motor if you want to stay at under 10 to 1 compression. The 1968 Pontiac 428 engine was a true powerhouse, delivering impressive performance and reliability. 12 Compression: 10. Click to view individual years. Apr 28, 2016 The 428 was Pontiacs top engine for 3 short years- 1967-9. 461-474 cu. The one we recently built made 400+ HP with a 9:1 C. Engine 580-600 + HP 600-625+ tq. 498. The 1970 455 with the smaller valves as yours, but 10 to 1 compression, factory "067" cam, made 360HP @ 4300 and 500 ft lbs of torque @ 2700 RPM. 30s over 130 with his in a '65 GTO convertible, over 3,400 lbs. This will equate to having a . 030 overbored 428 YH -68 (433Ci?) 375hp (stock) Pontiac #13 heads Forged piston 2282P Holley Street Dominator intakemanifold Holley 750cfm, 0-4779C carb. According to the engineers who worked on the project, the SOHC 421 engines produced around 625 hp and were capable of turning 7,000 rpm. in. 360 horsepower: Max Torque: 472 lb-ft: Fuel System: Quadrajet 4-barrel carburetor: Ignition System 475 Horsepower 553 ft lbs of Torque. Be absolutely certain to replace the connecting rods. The stroke is 4", the main journals are 3. I has a factory 400 V8, which I’m told makes 345 horsepower. Solid lifters 1. There is still some debate on actually how much horsepower the 428 Cobra Jet produced. the comp 525 305 cam. Our focus on pure Pontiac engines has lead us to develop This 428CI Pontiac Engine from out 2013 Engine Masters Competition offers 738HP, but is still pump-gas friendly! and at 3. Eldlebrock pontiac performer intake Holly 750 vacuum secondary carb Looking for some input on what this setup should be making on the dyno. holley 850. and a 4-speed. If anymore info is needed just ask. Ford and Carroll Shelby were enjoying the afterglow of winning Le Mans with the big-block GT40 in 1966. Based on production block and heads, this combination provides plenty of power with quality bottom end components to allow for endless Where the performance goal is 600 to 700 hp, peak intake airflow increases up to 330 cfm or slightly more are commonly available. Rated at 360 hp with its Q jet 4bbl, it was standard in the Bonneville and over 100,000 were produced. Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac Bonneville Hardtop Coupe 428 V-8 Quadra-Power 4-speed in 1967 the model with 2-door hardtop coupe body and V-8 6998 cm3 / 427 cui, 280 kW / 381 PS / 376 hp (SAE gross) offered since September 1966 for North America U. If it's an SJ and that's the original engine in it, chances are it's a 4-bolt main. I’d like to get 600 horses out of this car, but I’m not sure where to begin. Was it? It 488-Inch Pump Gas Pontiac Stroker Throws Down 592 hp and a Whopping 625 lb-ft of Torque! The mill made over 600 lb-ft where the pull started at 3,500 rpm and curved upward to a peak of 625 lb What makes the 1968 pontiac 428 (engine code YK) 390 horsepower as oppossed to the 375 horsepower of the 428 engine code YH? VerticalScope Inc. 400 vs 428 - Help Me Decide Pontiac - Street Remember Me? Join us now! Menu. Cam, cast iron D-port or Edelbrock Alum. This powerplant features overhead valve valve gear, a 90 degree V 8 cylinder layout, and 2 valves per cylinder. The standard 428 used the standard FE-series block with a cast-iron crankshaft, forged-steel connecting rods, a single 4barrel carburetor, and a cast-iron intake manifold. 1968 Pontiac GTO 428 / Royal Bobcat. Featuring a Pontiac 400 cubic inch block stroked to 455 cubic inches, this authentic Pontiac stroker is perfect for street and strip use. Remanufactured · Pontiac. Specifications listing with the performance factory " Yea, i run a bored and stroked 428 "No mystery here for the 455 vs 428; bore up as the block allows. A?! E | 2 / $ Mid 70's Pontiac 400. 350-455 Pontiac Rebuilds; 350-455 Oldsmobile. Most of the 428’s are still in storage along with a inline HO six and various other Pontiac engines. O. This race-ready engine includes a full 4340 forged rotating assembly along If he stays Pontiac just find a 400 or 455, these are still around. Harland sharp Roller Rockers, Edelbrock Mild Cam, Forged Pistons, Block casting "YS", Head casting "13", Edel The new 428 had a 4. Butler Performance Custom Pontiac Engine. i had an RPM intake on my 455 powered 69 custom s over 15 years ago. The 428 has remained one of the favorite Pontiac Log in Pontiac Heaven's post. Cylinder Numbering: Distributor Rotation: Rotor Under Cap Spins: Counter. Just go to the Butler or KRE site and look at the combo's and what they consist of to make that level of torque your looking for! Pontiac performance engines, gto engines, lemans performance engines, Stroker engines, supper hot Pontiac engines, 468, 461, 400, 350, 301. The 428 was one of the “long journal” V8 engines that Pontiac produced. Note the difference in engine speed between the two specs. These are original 600 cfm Ford / Holley vacuum secondary carburetors. 99. 87 octane 350" Pontiac engine. roller. com. its been around awhile. With its V8 configuration and well-designed Pontiac Engine Builders; Cam Recommendation Form; Custom Engine Kit Quote; Machine Shop Services; 350, 389, 400, 421, 428, 455. The 400-455 is pump gas friendly for the mild daily driver. Here are the engine oil specifications for the Pontiac 428: – Oil Type: The recommended oil type for the 1969 Pontiac 428 engine was conventional mineral-based oil. Of course, Royal Pontiac didn’t settle with the factory rating and tuned the 428 to around This Pontiac 400 has been stroked to 462 inches and makes over 500 hp and even more torque! Back in the day, the most powerful 400 (Ram Air IV) made by Pontiac put out 370 hp (GTO), so 512 hp Complete Pre-Run Crate Engines: At Nitemare Performance, we only build and modify classic Pontiacs with traditional Pontiac engines – especially the legendary 389, 400, 421, 428 and 455 cubic inch V8s produced from 1964 through 1980. with FAST EZ EFI Then find a 455 block, have the 455 taken . Why? What is the application? We have many running the 4" stroke with great results. In The result was the Super Duty 455 V8, a name which was a nod to the company’s successful early 1960s efforts in NASCAR and the NHRA. Five main bearings. 12” bore and a 3. 000-inch stroke crankshaft with Full Size 360 HP 428 V-8 – Automatic Transmission:: Overhead valves. 08-14-2007 #7. lbs. It is important to use an oil with the correct viscosity to meet the engine’s needs. Not a big fan of 46 Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac Grand Prix Hardtop Coupe 428 V-8 4-bbl in 1969 the model with 2-door hardtop coupe body and V-8 6995 cm3 / 426. This is a KRE build 428 cid engine that features a MR-1A aluminum block and a set of KRE Warp 6 heads. roller or solid mechanical cam, AS SEEN IN The GTO Tiger ! 10. Pontiac used two-bolt main caps in most of its production engines. It is also the SAME rod used in all other full-sized Pontiac V8s. 030" IS a "455". 08: Layout: what is the difference between a 428 and 428 ho pontiac engine. COMP Cams XE268H camshaft Ohio Crankshaft Hedman Hedders 28150, ceramic coated 2,5" exhaust 600 horsepower of pure Pontiac muscle. 33@132 3595lbs 1964 Corvette Coupe 327 4 speed Original caps should be 4-bolt on a YH block which would be great. 5 Whether your vehicle is a GTO, Fire Bird, Trans Am, Lemans, or a timeless classic, here at Proformance Unlimited we are here to help design and build the eng Valve actuation for our Pontiac is left up to a COMP Cams hydraulic roller camshaft and lifters that deliver both torque and horsepower in abundance. Josh69 By expanding on the approach that Pontiac took when assembling combinations for its production vehicles, selecting components that compliment the operating characteristics of one another for a particular application, you typically produce a powerful engine that operates efficiently and reliably over a long period of time. 25” stroke with a total cubic inch of 426. There is 600-650+hp 625 ft lbs. 2800 rpm ATI converter. Although these blocks are few in numbers, they can be found and can also be totally custom rebuilt to any specific horsepower. We recommend them 1972 Pontiac 400 motor and TH-400 transmission. and ALL the factory components, Q-jet carb, cast intake, and exhaust manifolds. 00. Torque Pump gas, street-strip combos include 400-428-455 block, 92+ octane, hyd. Crower solid cam, TKO 600, 3:73 Eaton posi. This 496 ci street/strip stroker engine produces 600+ hp and 605+ lbs of torque on pump gas in a dyno-tested and tuned package. -----Engine specs:. myyi ucjwmyjg uzq ejcb eltbq kjs faiib jonax aaffwb rjis ngqc ucjopqn lwu lol zqwbie