The Buick V8 engine option continued through 1971 after which Jeeps returned to AMC V8 engines, American Motors having purchased Jeep from Kaiser in 1970. After outselling Oakland, Pontiac became the sole survivor of the two by 1932. The SR block also sold as a heavy duty racing block. The 4-speed manual transmission was also available behind the 400 T/A 6.6. Kaiser-Jeep switched to the Buick 350 in 1967 after AMC discontinued the 327. Despite much of our motoring history being dominated by six-cylinder engines, it’s no secret Australians love a V8 engine. Three two-barrel carburetors, 10.75:1 compression, 290 hp (216 kW) @ 5000 rpm, 375 lb⋅ft (508 N⋅m) @ 2800 rpm. From 1969 though 1970, the RA IV was available in both A-Body (GTO/Judge) and F-body (Firebird/Trans Am) form. American Motors' first V8 in-house engine, the 250, was used in AMC automobiles from 1956 through 1961. Sign in to check out Check out as guest. Like previous generations of Ram Airs, it used Pontiac's special cast-iron "headers". The Conley Stinger 609 supercharged four-cycle V8 gasoline engine - 6.09 cubic inches and 9.5 horsepower at 10,000 rpm (Photo: Conley Precision Engines) View 19 Images 1 / 19 "455 HO" callouts on the 'shaker' hood scoop, Forged steel 6.625 in (168.3 mm) rods (Ram Air V style), Large-valve heads (valve diameter): 2.4 in (61 mm) intake, 2 in (51 mm) exhaust, Small-valve high-RPM head (valve diameter) 2.19 in (56 mm) intake, 2 in (51 mm) exhaust. Test Stand $1,695. The list is compiled from "Performance American Style" (mainly), "American Cars 1946-1975" and various automotive manuals, technical service manuals, published road tests, and AMC's pamphlets. Various Pontiac sources have emphatically stated that NO 310 hp (231 kW) versions of the SD455 were installed in regular production cars. Beginning in 1961 the Pontiac V-8 (389 and 421) was dubbed the Trophy V-8, due to its many victories in racing. Very few V8’s at the time were DOHC, with 32 valves. In 1969, Pontiac unveiled its Trans Am model Firebird, and since racing rules required engines of less than 5 L (305.1 cu in), Pontiac unveiled the 303 for racing models only, never available to the public. The 1UZFE was a highly advanced V8 engine, that now has a cult following. Initially marketed as a 287 cu in (4.7 L), it went on to be manufactured in displacements between 265 cu in (4.3 L) and 455 cu in (7.5 L) in carburated, fuel injected, and turbocharged versions. It was removed from the design for the 1960 model year because designers moved the generator and the power steering pump from atop the front of the engine down to the front of the heads to accommodate a lower hoodline. The 327 was sold to Kaiser-Jeep from 1965 to 1967 for use in the Jeep Wagoneer SUV and Gladiator pick-up truck. (The 1990-95 Corvette ZR-1 had a 5.7-liter V8 called the LT5 that was unrelated to either the Gen I or Gen II 350.) Whether you prefer embarking upon your next adventure in the Cayenne together with friends, or fall for the iconic lines of the Coupe, it is purely a matter of personal taste. The concept car Pontiac Strato-Streak was used to introduce the V8 and in later years the engine was installed in Pontiac products. Maserati V8 Quattroporte M139A Auto GearboxItems Available: 1MIKES PLACE RACING CAPE TOWN BUY WITH CONFIDENCE ! Its power was achieved through bending of EPA emissions-testing procedures,[citation needed] which led engineers to de-tune the engine to 290 hp (216 kW) in order to comply (via a camshaft change to the same profile used in the early RA III 400 engines for mid-1973 and 1974), after which point it was discontinued. Pontiac's V8s share the same 6.625 in (168.3 mm) connecting rod length, with the exceptions of the later short deck 301, 265, and 303 Ram Air V. Most Pontiac V8s had an overall length (to the edge of the water pump pulley) of 28.25 in (718 mm), an overall width of 27 in (690 mm), and a height (not including air cleaner) of 31 in (790 mm)× 686 mm × 787 mm[clarification needed]. Pontiac still offered the regular 455 (RPO L75) in its full sized cars, and after some public outcry a "455 HO" package was offered for the Firebird's top of the line Trans Am model. The crankshaft in the 428 had a "N" cast on them (designating nodular steel) as opposed to the 421's Armasteel. This video features 15 best sounding V8 engines by 15 automotive brands. These heads flow 20% better on the exhaust side than the 1966-1969 rectangular port heads and are thus the best for performance. The very modest cam, combined with a low-compression ratio of 8.4 (advertised) and 7.9:1 actual resulted in 290 hp (216 kW) SAE NET. Painted Valve Cover $125 The oil system feeds a central gallery to the cam and crankshaft first from front to rear, and then dividing at the front to feed the two lifter galleries from front to rear. In 1969 Pontiac created four versions of the Ram Air V engine: a 303 cu in (5.0 L) short deck version for SCCA Trans-Am racing, a 366 cu in (6.0 L) variant for NASCAR, a 400 cu in (6.6 L) version for street use in GTOs and Firebirds, as well as a 428 cu in (7.0 L) adaptation for drag racing. Based on the same short-deck as the 301, the "LS 5" 265.1 cu in (4.3 L) was offered only in 1980 and 1981, and featured a smaller bore of 3+3⁄4 in (95.3 mm) coupled with the same 3 in (76.2 mm) stroke of the 301 (same bore and stroke used by Chevrolet when the first small block motor was introduced in 1955). This muscle car engine was rated at 340 hp (345 PS; 254 kW) and 430 lb⋅ft (583 N⋅m; 59 kg⋅m) of torque due to a different intake. In the 1968 Pontiac GTO it was given a 10.75:1 compression ratio and tuned to deliver 360 horsepower and 445 foot-pounds of torque.[2]. In 1964 when the new "A" body intermediates came out there was a new corporate (GM) engine size limitation to anything less than 330 cu in (5.4 L). Its cast "670" heads had taller valve spring heights than the standard D-port heads, and the only 14-degree valve angle closed combustion chamber making these heads unique. Although it is much different from the original 1955-vintage Pontiac V-8 powerplant, the 301 has the distinction of being the last true Pontiac V-8 engine, as Pontiac ceased production of these engines effective April 1, 1981. Pontiac did not release official power ratings for this engine, saying only that it had more than 300 hp (224 kW). Pontiac continued to manufacture its own engines, distinct from Buick, Cadillac, Chevrolet, or Oldsmobile, until 1981. There are 58 Ford cars, from $6,495 Made with a provision for dry sump oiling, it truly was a racing engine, detuned for use in passenger cars. In 1973 a further refined and even stronger but less powerful yet version, the Super Duty (SD) engine, was introduced with 310 hp (231 kW) using a similar camshaft specifications to the Ram Air IV 400. A V8 engine then became an option in the Classic instead of a separate model. Since both engines were rated at 255 hp (190 kW; 259 PS), it is probable that the Rebel's was underrated.[7]. Like the 327, it uses hydraulic valve lifters. More 400 cu in (6.6 L) engines were produced by Pontiac than the other versions - estimates range from 80 to 200 units. All 400 engines for 1979 were W72 versions and were last produced in 1978, after which time the tooling was dismantled. The 455 HO designation made its debut in 1970; Rated at 360 or 370 hp (268 or 276 kW) (depending on which vehicle it was installed into) & 500 lb⋅ft (678 N⋅m) of torque, it differed from the regular full sized car 455 by large valve heads with smaller combustion chambers, and a larger camshaft. The 421 also marked the end of the option for a forged-steel crankshaft. The 301 HO was the base Trans AM engine in 1980 and 1981. The two inline engines were used through 1954, when Pontiac unveiled its OHV Strato Streak V8 in 1955. The center two intake bolts on each head were relocated to prevent accidental mix-ups of Gen-2 and Gen-3 intakes. The 327 was also offered as a marine engine as the "Fireball" by Gray Marine Motor Company. In 1970, all three blocks grew in deck height and gained a new head design. Ford unveiled a new 7.3-liter pushrod engine for the 2020 F-250 pickup, and that engine is now offered as a crate motor through Ford Performance. Along with being cheaper to build, this allowed more consistent valve action with less weight than a conventional shaft. The Rover V8 information Centre and web site, Its all in here, more free info on the facts, failings and fabulouse possibilities of this remarkable engine. This is a 401 casting (same casting number) without the displacement cast into the side and with a 360 bore and thicker deck. This was to ensure there was enough fuel to cool the cast offset dished pistons. A camshaft with 301/313 degrees of advertised duration, 0.407-inch (10.3 mm) net valve lift, and 76 degrees of valve overlap was specified for actual production engines in lieu of the significantly more aggressive RAM AIR IV style cam that had originally been planned for the engine (initially rated at 310 hp (231 kW) with that cam), but ultimately proved incapable of meeting the tightening emissions standards of the era. 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