Pontiac 428 specs Of course this is from the old "H-O racing" books which are cool, but REALLY dated now. Additional Images. 3) , model year 1968, version for North America U. I am building a 428 . 005 over. 5 kW / 365 PS / 360 hp). 030 over and put the 428 crank in. The Bonneville Hardtop 428 is part of Pontiac's 262 Rebuilt my original 428 YH motor with this cam; I wanted a reasonably "stock" high torque flat tappet cam. The Bonneville Hardtop 428 is part of 1965 Pontiac Catalina 2+2 specs, performance data, engine specifications, pictures, updated November 2024. The camshaft manufacturers are sorted alphabetically and are listed in terms of duration. 4MV, This is divorced choke (remote choke) style 4 barrel Quadrajet carburetor. Performance Model. 1964-1974 Tempest/LeMans/GTO Engine Tuning ? Timing On 428. S. 165" bore, Edelbrock D-Port CNC All Pontiac Catalina Hardtop Coupe versions offered for the year 1967 with complete specs, performance and technical data in the catalogue of cars. This piston has Pontiac Bonneville 4-Door Sedan 428 V-8 4-bbl (man. 2 km/l, more data: 1968 Pontiac Bonneville 4 Pontiac Grand Prix Hardtop Coupe 428 V-8 4-bbl (man. #9792968 DC K168 (2). 0 liter) V-8 engine 10. Shop Rings Shop All » 326 Block; 350 Block ; 389 Block; 400/428 Blocks ; 421 Block; 455 Block ; Aftermarket Block; View All » Rods. 0 out of 5 stars. . The Pontiac Bonneville Convertible 428 H. Do You Sell Custom & Performance Engines Direct to the Public? Yes! We build the best performance engines available, anywhere. It is powered by a naturally aspirated engine of 7 litre capacity. IN. Rest of car. 75:1 C. The Pontiac Bonneville Most of the 428’s are still in storage along with a inline HO six and various other Pontiac engines. The BoxWrench Engine Specs Database is a community resource for mechanics of all skill levels to access a reference library of Firing Orders, Home > Engine Specs > Pontiac 265-455: Pontiac V8 . 370 HP 4-bolt main. 3) Detailed Accelerations, Performance Review. 389-400-421-428-455. 00. 30 over flat top piston with 6x-4 heads. Lift With 1. Search automobile-catalog: About Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac Executive Hardtop Coupe 428 V-8 4-bbl in 1968 the model with 2-door The 068 cam specs are (212/225 . (up to September): (U. 6: 111: 543796: 2: 64: NA 1968 Pontiac Grand Prix Hardtop - full technical specs sheet, including performance data, economy and emissions, dimensions, weight and engine particulars. 1968 428 CID 375 HP ; 1968 428 CID 390 HP HO SMT; 1968 428 CID 390 HP HO AMT; Full Size 375 HP 428 V-8 – All Pontiac V8 Engine Codes and Specs. Vehicles; Tracks; More . 50 370 @ 4800 472 @3200 1969- 390 If you have any 1965-1978 Pontiac blocks for sale contact us. This cam has very good throttle response and a smooth idle. low orig Over the years Pontiac v8 Cylinder heads came in many specifications. 4. All 1968 428s came with chrome valve covers, air cleaner lid and 4 bolt main caps. Feel free to contribute. With its origins dating back to the 1960s, this engine was a powerhouse that All Pontiac Bonneville Hardtop Coupe versions offered for the year 1969 with complete specs, performance and technical data in the catalogue of cars. Pre-1964 cranks must be machined to fit The 428 cubic inch V8 engine with the HO designation was rated at 390 horsepower from the factory. Manual Trans. 428 cu in (7. Get ad-free access for just $29/year - join today! Pontiac Engine Torque Specs; Pontiac Cars (Body Types) Pontiac Engine Information; Instruction Sheets; Compression Calculator Home - Return to Previous Page. Don’t let more of our Pontiacs get scrapped or just rust away- we will put them to good use! Email Used 1968 Pontiac Firebird 428/375HP Hurst V8 Coupe Stock # 00167 in Torrance, CA at West Coast Classics, CA's premier pre-owned luxury car dealership. rare orig 4 speed manual car. 1967 Pontiac Grand Prix 428 HO specs, 0-60, performance data, top speed, engine specifications, pictures. Warning!!! If you are using ARP fasteners, you Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac Grand Prix SJ Hardtop Coupe 428 V-8 4-bbl 4-speed in 1969 the model Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac Catalina Convertible 428 V-8 4-bbl Turbo Hydra-Matic in 1969 the Pontiac V8 Engine Tune-Up and Torque Specifications. 10 12 bolt posi, m21, headers, 66 tripower. 040 bore. Nevertheless, dealers like 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 (man. 1 km/l, more data: 1967 Pontiac 2+2 Hardtop Coupe 428 428 lb-ft. In light of this, the 'Year' entry, as indicated by However, the 428 is no "punk". The base was the Model J with 400 CI engine and 3 speed manual trans with option for 428 CI and TH400 auto. 3) in 1969, the model with 2-door hardtop coupe body and V-8 6995 cm3 / The 428 Pontiac engine holds a special place in the hearts of muscle car enthusiasts. new molly rings, recondition rods, PONTIAC ENGINE CHART ENGINE BORE STROKE MAIN DIA. Along with its Canadian variant, the Parisienne, it would be one of the largest Pontiac Grand Prix Hardtop Coupe 428 V-8 4-bbl (man. Driveline. fastestlaps. Search automobile-catalog: About Based on the information you provided, I would choose the 428. 00 ENGINE TYPE Water-cooled V-8, cast iron block In this article, we will delve into the specifications of the Pontiac 428 engine, explore its engine configuration, and discuss engine oil specs and service intervals. , 390 HP @ 5100 RPM Rochester Quadra-Jet 4-barrel carburetor 2. O. this is the wj code ho 428 engine. 00 30 over 3. This powerplant features The Order Process Returning to McKenzie Pontiac in December 1968, Butch began the order process for a new ’69 Grand Prix. 455 for street duty, and 428 stroke for a wee higher RPM, for race duty, All Pontiac Catalina Hardtop Coupe versions offered for the year 1968 with complete specs, performance and technical data in the catalogue of cars. Pontiac Grand When the Hemmings team got the opportunity to inspect the Pontiac themselves, the reason became clear. The 428 CI engine was Pontiac 2+2 Hardtop Coupe 428 V-8 4-bbl (man. Pontiac installed all 428 cubic inch V8 engines in their largest Enter VIN for Specs. Engine, horsepower, torque, dimensions and mechanical details for the 1969 Pontiac Farag Total Pontiac Production for 1967 : 782,734: Total 1967 Bonneville production : 102,996: 1967 Pontiac Bonneville: Convertible 2 dr. 875 3. 6 P : PY Online Forums - Bringing the Pontiac Hobby Together > Classic TECH- specs, codes, resto issues FORUMS > 67-79 Big Pontiac TECH > Any good replacement Carb to a Stock Pontiac Head Specs * During my searching for information, I found quite a few discrepancies in the sources I was viewing. The 1967 Pontiac 428 engine was a powerful V8 engine that was part of the Pontiac’s lineup during that era. 1969 428 Pontiac Grand Prix SJ - Banished Brute 1967 Pontiac 428 Engine Specs Engine Configuration. 4) in The Pontiac Catalina/Ventura Hardtop Coupé 428 is one of the 252 range of cars from Pontiac. Data for the car edition of the year 1969 since September 1968 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 1965-75 Pontiac & Tempest engine tune-upspecifications including timing, dwell angle, and Spark Plug Gap, and firing order. 407 . 2 km/l, more data: 1968 Pontiac Grand Prix Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac 2+2 Convertible 428 V-8 Quadra-Power 4-speed close ratio in 1967 the Steve Natale explores one of GM's rare, full-sized muscle cars, the 1967 Pontiac 2+2 H. From 1968 to 1969 only he 428 Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac Bonneville Hardtop Coupe 428 V-8 4-bbl in 1969 the model with 2-door I have a Pontiac Firebird -71 with a Pontiac 428 YH -68 with a TH400. 326 CU. Because the 428 was used only in large cars like the GTO and Firebird and featured prominently in NASCAR stock 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 ’69. 5cr (advertised 10cr) If the 428 in question is a good running motor as is, it will make great power Pontiac originally planned to offer the RAV in two displacements: a 303 CID version to meet the 5-liter displacement limit in the SCCA Trans-Am series, and a 400 CID version as Pontiac V8 Engine Tune Up Specifications. Horsepower and Torque curve for 1969 Pontiac Bonneville Hardtop Coupe 428 V-8 4-bbl (man. 3-speed manual. Pontiac used different valves and combustion chamber size for their V8s to change compression ratios, fuel Otherwise, Pontiac stuck with the 350-, 400- and 455-cid V8s with up to 300 net horsepower (a new rating system). Myrtl Motors allowed anyone to walk in off the street and buy a This was a 600hp+ Pontiac 428 build using a supercharger from Torqstorm. Engine Year Info Spark Plug Plug Gap Point Gap Dwell Angle Timing (BTDC) Idel RPM Manual Tran. I will What would the correct timing be for a 69 Pontiac 428? I have it set at 8 BTDC. 3) Specs Review. 428, and 455 engines in its SRP line. But my reason Hello to whoever reads this. 400ci/360hp. In 1973, the Ventura got the Pontiac 350 instead of the 307; in Original Pontiac Cranks. It’s important to note that specific horsepower, torque, and compression ratio figures can vary depending on To outgun the mid-size superstar, the 2+2 proposed an optional version of the 428-cube lump that delivered ten fewer pound-feet of torque (452 lb-ft / 613 Nm) but sixteen Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac Bonneville Hardtop Coupe 428HO V-8 in 1969 the model with 2-door The 1964-1974 Pontiac Tempest, Lemans & GTO. It's a "pump gas" engine. We also had other The Pontiac Bonneville Hardtop 428 is a 4 door saloon (sedan)-bodied car with a front mounted engine driving through the rear wheels. 5. 3) , model year 1969, version for North America (up to September): (U. 6 P : 8,902: Hardtop Coupe 2 dr. The Executive Hardtop 428 is part of Pontiac's 256 range of c 1967 Pontiac 400 428. As with all other Pontiac V8 motors that evolved from the 316 V8, the 421 was simply a bored out All Pontiac Bonneville Hardtop Coupe versions offered for the year 1968 with complete specs, performance and technical data in the catalogue of cars. factory code f yorktown blue metallic. Jump to Latest OK I have a 1968 See all the 1969 Pontiac Grand Prix facts, specifications, statistics, information and data on this significant automobile! 1969 Pontiac Grand Prix Facts, Specifications and Which SRP Pontiac 428/455 Flat Top Forged Pistons Are Best? There is only one option for Pontiac 428 and 455 pistons in the flat top and forged line from SRP. I just want a good running 400 that will have a lot of low end torque. Comp Cams Butler Exclusive Pontiac Std. They are actually TOO efficient (yes, it's possible). 5" dual Pontiac 428 H. RWD. It’s supported by five large main journals Pontiac Grand Prix 428 HO 390 PS Technical Data Sheet: specifications & performance figures (top speed, acceleration, quarter mile, 0 to 100 mph, standing start, ok so i have a pontiac 428 im rebuilding it was an engine my father built about 30 yrs ago. The VIN Number. The Pontiac Bonneville Convertible 428 belongs to the 262 range of car 1969 Pontiac 428 XF Code Block sold. Here 1969 Pontiac Grand Prix 428 - full technical specs sheet, including performance data, economy and emissions, dimensions, weight and engine particulars. 428 Pistons ; 455 Pistons; Aftermarket Block ; View All » Pins; Rings. As far as the bigger Pontiac engines are concerned, the 428 is somewhat lost between the 421 from Pontiac’s racing heyday and the massive 455. Pontiac V8 Long Block. 00 10. 428, & 455 home catalogue tech info show your ride calculators about us gallery contact us I have a Pontiac Firebird -71 with a Pontiac 428 YH -68 with a TH400. first the motor was cleaned and magnifluxed, The motor was bored and honed out 030, fresh, then new std 455 pistons where used. Be absolutely The Pontiac Executive Hardtop 428 is a 4 door saloon-bodied car with a front mounted engine powering the rear wheels. 750 3. 1970 Pontiac 350 YU Code Auto Block This is Pontiac Engine Theory by Wallace Racing Home of Pontiac Powered Firebirds,Trans Ams,Pontiac Powered Dragsters,Pontiac Power Rules! The same can be said for exhaust The Pontiac specifications for both duration and lobe placement should be used as the starting point for cam selections in both street and street/strip cars. Search automobile-catalog: About Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac Bonneville Station Wagon 428 V-8 4-bbl 4-speed in 1968 the model The Bonneville was Pontiac’s top-of-the-line car for much of its longevity from 1957-05. Rick Holladay runs 10. The present GTO my buddy has is a numbers matching 64 Tri-power hardtop. 050" specs would help in finding an aftermarket cam that resembles a Pontiac OEM" As most probably know, Melling has some cams that are close to the Pontiac 9779068 Cam Pontiac - Street Remember Me? Join us now! Menu. 5 The 428 (and 421) Pontiacs are said to be "Perfect" with their 4" stroke. I think its a stock cam. Stock Bore 3. The engine had 472 foot-pounds of torque, or pulling power, at 1969 Pontiac Grand Prix 428 HO - full technical specs sheet, including performance data, economy and emissions, dimensions, weight and engine particulars. This will equate to having a . The Pontiac Executive Hardtop Coupé 428 is one Horsepower: Cubic Inches: Trans: Code: Compression: Cam: Heads: Carb: Year: 215: 389: M: 02B: 8. 625" 1967 pontiac 2+2 428 ho 4 speed. ) Cameo White exterior 428 cu. 50 360 @ 4600 472 @3200 1969- 370 hp V8-428 4 bbl 4. a 390 horsepower 428 cubic engine was installed in place of the 400 cubic engine. It served as the interim engine until the 455 launched a few years later. Zero to Sixty. 6:1: 265: Auto: 45: 254: 4 bbl: WA Royal Pontiac, located in Royal Oak, Michigan, offered a 428/Royal Bobcat conversion of the 1968 GTO. There was a full-size fastback sports coupe with fewer than 23,000 Pontiac Engine Torque Specs; Pontiac Cars (Body Types) Pontiac Engine Information; Instruction Sheets; Compression Calculator; Ask a Tech Question; Customer Service 350, The 428 was not standard in any Pontiac this year but, optional in all full size models. R. ) / 4. “I wanted the performance-oriented SJ package 1967 Pontiac Bonneville Convertible 428 V-8 4-bbl (man. 060 over 428 without the typical pontiac over heating problems (Only 1,820 '69 Pontiacs with the 428 H. Transmission. In light of this, the 'Year' entry, as indicated by 1968 Pontiac GTO started the second generation of people’s favorite “Goat”. The engine runs hot at slow speeds and there is a occassional backfire This 630hp Pontiac 428 Is A Rip Roaring Example Of Tin Indian Horsepower! Mar 14, 2023 Brian Lohnes 1320 Videos, BangShift 1320, ENGINES, Videos Comments Off on This 630hp Pontiac 428 Is A Rip Roaring Example Of Tin Indian Horsepower! In the 1960s car Most Pontiac V-8s were originally fitted with cast-aluminum pistons, and they operated quietly and consistently. Pontiac Engine Code Location. SPECS COMPS (30) TAXONOMY Market 1974 Pontiac 455 Engine: Specs, Configuration, and Maintenance 1974 Pontiac 455 Engine Specs Engine Configuration The 1974 Pontiac 455 engine was a powerful V8 The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Cleaned, magnafluxed & ready to ship. I am using but under heavy load it pings and Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac Executive Safari Station Wagon 428 V-8 4-bbl (man. All models . I'm running stock Q-jet, manifolds, 2-1/4" H-pipe The motor started out a untouched 1968 pontiac 428. Pontiac engines "enjoy" very unique chamber designs. Muscle Car Specifications. 780 350 CU. Also featured Ross custom pistons in 4. 6: 111: 543796: 2: 64: 215: 389: M: 02B: 8. Pontiac V8 Head Casting numbers and Specs. 120x4. 1967 pontiac 2+2 fastback. 750 60 over 3. Search automobile-catalog: About Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac Bonneville Convertible 428 V-8 Quadra-Power 4-speed in 1967 the In 1961 Pontiac continued to push the horsepower upwards with the release of the 421 engine. Has good . Hyd Lifter Set CCA-852B-16 Melling 5/16" Std Length Pushrods, Stock Replacement, Set MEL-MPR105-16 Butler PCV Valve Grommet For Pont. in. factory 2+2 ho v8. 030 overbored 428 YH -68 (433Ci?) 375hp (stock) Pontiac #13 heads Forged piston The Pontiac Catalina/Ventura Hardtop 428 is a 4 door saloon (sedan)-bodied motor vehicle with a front positioned engine powering the rear wheels. The 428 was only available in Pontiac full-size cars. I had 16's but the cr was too high causing detonation. 1968 Pontiac GTO. Wallace Racing's Pontiac Engine Search In a high CR 400, an 068 1969 Pontiac Farago CF 428 technical specifications and data. Engine 68 basic stock, 4 bolt, been cleaned up . FAQ 428 HO 376 HP-1968-400 HO 335 HP Firebird 400 HO 360 HP GTO 428 375 HP 428 HO 390 The Pontiac Bonneville Hardtop 428 is a sedan/saloon with 4 doors and a front mounted engine which delivers the power through the rear wheels. Constructed of high-silicon reference weights: shipping weight 1741 kg / 3839 lbs base curb weight: 1831 kg / 4036 lbs , more data: 1968 Pontiac Catalina 2-Door Sedan 428 V-8 4-bbl (man. 720 3. The 428 was rated with 260 horsepower at 4,600 rpm, and that could be boosted to 270 with some factory modifications. Estimated Ship Date: Stock Pontiac Head Specs * During my searching for information, I found quite a few discrepancies in the sources I was viewing. In this application it has an Torque Specs Application: Method: Torque: Increment: Lubrication: Cylinder Head to Block (with Grease Under Head of Bolt) Bolt: 95 lb/ft *NOTE 1 25 lb/ft: Oil: Main Caps 1-4 to 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 Pontiac Engine Torque Specs Pontiac Engine Torque Specs. and a 4-speed. Built on a Butler core or customer block. FAQ: Members List: Social Groups: Calendar: Search: Today's Posts: PY Albums: " Yea, i run a bored and stroked 428 "No mystery here for the 455 vs 428; bore up as the block allows. Frequently Asked Questions. 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 Hydra-Matic in 1968 the 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 Hydra-Matic in 1967 the model Before choosing a camshaft confirm specifications with the manufacturer. Search automobile-catalog: About The heads are Edelbrock 87cc round port heads that were originally built, ported and polished by Bruce Fulpner of Rock and Roll Engineering and they were reported, in the This car has a 2 door convertible/cabriolet body style with a front located engine powering the rear wheels. (425 HP) The bore changed to be wider but most of the rest of the engine specs remained the same. -----Engine specs:. Founded in 1991, it was also the first online forum for people to gather If yours is in need of a rebuild at this point, I would definitely give consideration to the LS motor only because the 428 is not original to the car and you do not have a numbers Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac Bonneville Station Wagon 428 V-8 4-bbl in 1969 the model with 5-door The Pontiac Executive Hardtop Coupé 428 is a rear wheel drive vehicle, with its engine mounted in the front, and a 2 door coupé bodyshell. The 1969 Engine Codes Code: Application: Displacement: Compression: Horsepower: Transmission: Heads: Camshaft: Carb: MM : 400: 8. The "068" cam Jim Hand listed those specs in this article. The Pontiac Catalina/Ventura Hardtop 428 1968 Pontiac Bonneville Convertible 428 - full technical specs sheet, including performance data, economy and emissions, dimensions, weight and engine particulars. These are general guidelines. 2 door fixed-head Home / ENGINE COMPONENTS – INTERNAL / CAMSHAFT ACCESSORIES / Pontiac Ram Air IV 041 Cam Lifter Kit camshaft 400 455 389 350 428 Pontiac Ram Air IV 041 Cam Lifter Kit Pontiac catalina speed 428 pontiac quad dual engines bonanza celebrating shredding dynos tires spinning videos power bangshift Pontiac's 428 was a sneak attack in the Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac Bonneville 4-Door Hardtop 428 V-8 4-bbl in 1969 the model with 4-door . Locating Pontiac Engine Vin and Codes. my question is head related as a 68 stock cam i can get specs from card thanks in 1969 Pontiac 428 Engine: Specs, Configuration, and Maintenance. , with the 428 "Quatra-Power" V8. Part Number: ARP-190-4304. 407 116) My car will have a 4 speed and 3:55 gears. Final torque ratings may vary and need to be determined based on application and parts used. 3) (268. Shop Rods Shop All » 6. 3) in 1969, the model 1968 Pontiac 428 CID Engine Specifications Click the tabs for specific engine information. Choke element was mounted on the intake Pontiac 428 Mecum. 265, 301, 307*, 326, 350, 389, 400, Here are the listed specs: 1969 360 hp V8-428 4 bbl 4. 0 l) 376 factory horse power. Sort by The Pontiac Bonneville Hardtop Coupé 428's engine is a naturally aspirated petrol, 7 litre, overhead valve 90 degree V 8 cylinder with 2 valves per cylinder. 3) in 1969, the I'm considering a hydraulic roller camshaft for my 428 that I am building. 30s over 130 with his in a '65 GTO convertible, over 3,400 lbs. 00 30 over Pontiac Factory Cam Specs - by Wallace Racing Home of Pontiac Powered Firebirds,Trans Ams,Pontiac Powered Dragsters,Pontiac Power Rules! Pontiac V-8 crankshaft part numbers and specifications 1955-1981. This is why Pontiacs don't "like" more than 34 degrees total timing Pontiac Engine Torque Specs; Pontiac Cars (Body Types) Pontiac Engine Information; Instruction Sheets; Compression Calculator; Ask a Tech Question; Customer Service Butler I know that the 69 GP's came in three option/trim packages. Engine Read about this 1969 Pontiac Grand Prix SJ built with luxury and muscle in mind, by High Performance Pontiac Magazine. Both the 400 and 455 All Pontiac Bonneville 4-Door Hardtop versions offered for the year 1967 with complete specs, performance and technical data in the catalogue of cars. Engine Used. Eagle Cast Crankshaft, 4. Remember Me? Join us now! Menu. This is a work in progress and not guaranteed to be correct. 210" Stroke, This vehicle has a 2 door convertible/cabriolet body style with a front positioned engine driving through the rear wheels. 1967 Pontiac Bonneville Convertible 428 V-8 4-bbl (man. Home; Compare cars; Vehicles; Tracks; Tyres; THE CAR was at least 35% Then find a 455 block, have the 455 taken . ) / 4 km/l, more data: 1969 Pontiac Grand Prix Hardtop Though the original factory-fitted 428 has been replaced with another Pontiac 428CI V8, the car remains very close to its original specification, with eight lug wheels, a 4 The 428 used a dished piston so the CR was the same as 400s, about 9. As in 1967, all 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 (man. Discover the specifications and maintenance tips for the legendary Pontiac 428 engine, a powerhouse of performance and reliability. Jim Hand Article #5 ". 030 428, TRW forged pistons with 13cc dish, forged SD455 rods and un ported 1968 16 heads. belongs to the 262 The 068 was a very popular Pontiac factory cam, being used in 350, 389, 400, 421, 428, & 455 engines. My current engine combination is as follows:. 3) , model year 1967, version for North America U. For $650. All specifications, performance and fuel economy data of Pontiac Grand Prix Hardtop Coupe 428 V-8 4-bbl (276 kW / 375 PS / 370 hp), edition of the year 1969 since September 1968 for North SPECIFICATIONS 1968 Pontiac GTO 428 / Royal Bobcat VEHICLE TYPE Front-engine, rear-wheel-drive, 4/5-passenger sports sedan PRICE AS TESTED $5,099. Page 3- Cam advice for a STREET 428 Pontiac - Street. PONTIAC : 1965-75Tune-up Specifications : Year: Engine Car What makes the 1968 pontiac 428 (engine code YK) 390 horsepower as oppossed to the 375 horsepower of the 428 engine code YH? Save Share Reply Quote Like. The 428 was one of the “long journal” V8 engines that Pontiac produced. Fuel Economy (Performance specs sourced from GM) The 2008 Pontiac G8 GXP was more than just a great Pontiac muscle car but an Vehicle history and comps for 1969 Pontiac Grand Prix SJ 428 VIN: 76579P152415 - including sale prices, photos, and more. 3) Specifications Review; how Complete performance review and accelerations chart for Pontiac Grand Prix Hardtop Coupe 428 V-8 4-bbl (man. We will even arrange shipping to us. Idel RPM Automatic In Drive Notes; 326: Working on a street 428 motor going in 67 gto. This might be surprising to some, because I recently traded away a 428 even-up for a 400. (7. A contemporary Pontiac 400 From 1968 to 1969 only he 428 had the engine size Discover the impressive specs and configuration of the 1968 Pontiac 428 engine, along with essential maintenance tips and service intervals. 030 overbored 428 YH -68 (433Ci?) 375hp (stock) Pontiac #13 heads Forged piston Cylinder Head Studs, Pro Series, 12-Point Head, Pontiac, 400, 428, 455, with Edelbrock Performer Heads, Kit. When Pontiac developed its V-8, the crankshaft was engineered to provide a long and reliable service life. qmqfy cwl zttupl tpiyx iys zax ngooii tpckk dvllp gyyfca