Pontiac 428 engine specs 1967 Pontiac Grand Prix 428 HO specs, 0-60, performance data, top speed, engine specifications, pictures. They were available from 1961-1976. Still makes me sick. 25". 326 CU. 935 389 CU. Apr 8, 2024 · 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. 64 in 1969. 61. High output versions of the 428 engines came in at 390 HP. 00; Stroke 4. 0L OHV 2v V8; Iron Engine Block; Iron Cylinder Heads; Bore 4. Learn about the Pontiac 428 V8 engine that was used in the Grand Prix, GTO and Firebird models from 1967 to 1969. Specifications listing with the performance factory data and ProfessCars Jul 13, 2018 · I have a Pontiac Firebird -71 with a Pontiac 428 YH -68 with a TH400. 00 30 over 4. Specifications listing with the performance factory data and ProfessCars 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 hardtop coupe body and V-8 6995 cm3 / 426. This powerplant features overhead valve valve gear, a 90 degree V 8 cylinder layout, and 2 valves per cylinder. Our Mar 4, 2013 · 1969 Pontiac Grand Prix 428 - full technical specs sheet, including performance data, economy and emissions, dimensions, weight and engine particulars. 1967 - 1969 Pontiac 428 CID 7. Dec 4, 2006 · With the chassis worked out, the 428 engine was next. Shown here is the 421 HO engine available from 1963 through 1966. PRICE AS TESTED $5,099. 720 3. That High Output 428 was a new offering for ’67 and was the top-spec engine available in Pontiac’s full-size line. Sep 15, 2022 · This 2+2 was optioned with the High Output 376-hp 428 backed by a four-speed; with fewer than 23,000 original miles, it’s only needed regular maintenance. 00 30 over 3. 1968 Pontiac GTO 428 / Royal Bobcat. It features a displacement of 428 cubic inches (7. 0 liters. The engine remains popular with performance car enthusiasts, but in 1969 the factory only installed them in larger cars. The Pontiac 428 High Output, commonly Aug 7, 2014 · The 428 is a great engine but it does not hold the allure of a 421SD or a Ram Air engine. over the base offering. From 1968 to 1969 only he 428 had the engine size stamped in between the freeze plugs. 9 cui, 276 kW / 375 PS / 370 hp (SAE gross) offered since September 1968 for North America . 030 overbored 428 YH -68 (433Ci?) 375hp (stock) Pontiac #13 heads Forged piston 2282P Holley Street Dominator intakemanifold Holley 750cfm, 0-4779C carb. 00. 3 kgm) at 3200 rpm. Find out the horsepower, torque, stroke, bore, compression and firing order for the standard and high output versions. This unit has an output of 375 bhp (380 PS/280 kW) of power at 4800 rpm, and maximum torque of 640 N·m (472 lb·ft/65. The 428 was only available in Pontiac full-size cars. 25” stroke with a total cubic inch of 426. 780 350 CU. 092 60 over 4. Long story short the 428 will have to come out a second time for a rear main leak, the first was the crank hitting the windage tray, no excuse for either. PONTIAC ENGINE CHART ENGINE BORE STROKE MAIN DIA. The new 428 had a 4. COMP Cams XE268H camshaft Ohio Crankshaft Hedman Hedders 28150, ceramic coated 2,5" exhaust Oct 15, 2009 · What makes the 1968 pontiac 428 (engine code YK) 390 horsepower as oppossed to the 375 horsepower of the 428 engine code YH? Dec 31, 2015 · Prior to this motor I had a 70 TA with 370hp so I use this as comparison. Here are the detailed engine specifications for this iconic engine: Mar 16, 2023 · Pontiac’s Large Journal V-8s came in three sizes: 421, 428, and 455 CID. 600 inches we were at 428 ci, which is a legacy Pontiac number. Motor mounts: Mar 17, 2024 · The 1969 Pontiac 428 engine was a powerful V8 engine that was widely regarded for its performance and reliability. Nevertheless, dealers like Royal installed the 428 in GTOs and Firebirds. Sometimes you could get a dealer to install one in a Firebird, and the engine was at times used in NASCAR racing. . From 1970 to 1979 The 350, 400, and 455 engine size is stamped on the left front of the block. Specifications listing with the performance factory data and ProfessCars The Pontiac Bonneville Convertible 428's engine is a naturally aspirated petrol, 7 litre, overhead valve 90 degree V 8 cylinder with 2 valves per cylinder. The Pontiac Catalina/Ventura Hardtop 428 belongs to the 252 model family from Pontiac. ENGINE TYPE Water-cooled V-8, cast iron The Pontiac V8 engine is a family of overhead valve 90° V8 engines the same specifications was rated at 370 hp (276 kW). 9 cui, 268. The 1967 Pontiac 428 engine was a powerful V8 engine that was part of the Pontiac’s lineup during that era. The extra cubes were added to mask the fact that Tri-Power options were no longer offered. Stock Bore 4. 12” bore and a 3. The stroke is 4", the main journals are 3. The 428 engine had a displacement of 428 cubic inches, which is equivalent to 7. Firing Order. 875 3. 428. Mar 21, 2024 · The Pontiac 428 engine belongs to the legendary Pontiac V8 engine family. 750 3. -----Engine specs:. Let’s take a closer look at its specifications and configuration. Cylinder Numbering: Distributor The 428 was Pontiacs top engine for 3 short years- 1967-9. Jan 1, 1970 · SPECIFICATIONS. Apr 28, 2020 · Intended for full-size cars, Pontiac’s 428 has plenty of muscle car history, even if it took some aftermarket wrenching to make it so. 5 kW / 365 PS / 360 hp (SAE gross) offered since September 1968 for North America . David Conwill and Matt Litwin. With its impressive specifications and robust design, this engine continues to be Read more… Jul 7, 2014 · This 428CI Pontiac Engine from out 2013 Engine Masters Competition offers 738HP, but is still pump-gas friendly! and at 3. 905 60 over 3. O. Pontiac Grand Prix 428 , 1969 The Grand Prix 428 is a rear wheel drive coupé passenger car with a front positioned engine, sold by Pontiac. 0 liters) and was produced from 1967 to 1969. 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. VEHICLE TYPE Front-engine, rear-wheel-drive, 4/5-passenger sports sedan. It's powered courtesy of a naturally aspirated engine of 7 litre capacity. It is powered by a naturally aspirated engine of 7 litre capacity. The Pontiac 428 engine was a bridge between two engines, which meant the 428 had a short lifespan. IN. 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. The 68 428 I had built for my 68 GTO is no comparison to the 70 TA motor. “I wanted the performance-oriented SJ package because it contained the 428 engine, and I opted for the 428 H. Upon its removal, Dave found the original body color paint on the firewall-Castillian Bronze-a "special paint" hue that cost $12. 12; Firing Order 1-8-4-3-6-5-7-2; Custom Build (Original Engine Submitted for Remanufacture); Professional Installation Recommended A dealer-installed option the Ram Air V engines are very rare. 750 60 over 3. was also used on the 400 and 428 Mar 17, 2024 · The Mighty 1972 Pontiac 455 Engine: Specs & Maintenance 1972 Pontiac 455 Engine Specs The 1972 Pontiac 455 engine is a legendary powerhouse that was highly regarded for its performance and reliability. Mar 17, 2024 · 1967 Pontiac 428 Engine Specs Engine Configuration. 12". 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. The 428 has remained one of the favorite Pontiac Jan 31, 2018 · The 400-cid Pontiac V8 that bowed in 1967 Pontiacs was a bored-out version of the 389 and a new 428 was a bored-out 421. 062 3. 350 The BoxWrench Engine Specs Database is a community resource for mechanics of all skill levels to access a reference library of Firing Orders, Distributor Rotation Directions and Block-Cylinder Numbering as well as Torque Specs, Timing Settings and Cylinder Head Tightening Sequences among other engine specs. The Pontiac Catalina/Ventura Hardtop 428 is a 4 door saloon (sedan)-bodied motor vehicle with a front positioned engine powering the rear wheels. Mar 5, 2019 · The Order Process Returning to McKenzie Pontiac in December 1968, Butch began the order process for a new ’69 Grand Prix. This engine is a true testament to Pontiac’s commitment to performance and power. The bore is the same as the 400 at 4. GM had an internal policy that limited mid-size cars to engines no larger than 330 cubic inches. Stock Bore 3. Pontiac Engine Torque Specs; Pontiac Cars (Body Types) Pontiac Engine Information 350, 389, 400, 421, 428, 455. To be honest it is often the engine most often overlooked even by those in the Pontiac community.