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Offered also in 1967, the 230 cu in (3.8 L) OHC 6 shared internal dimensions with the overhead valve Chevrolet straight-6 engine it was based on, [citation needed] but had unique cast iron block and head castings. Only the large cam carrier/valve cover was aluminum. It used a jackshaft (outside of the block) for oil pump and distributor drive.
It was the largest in the GMC straight-6 line until the 477 debuted late in the 1940 model year. It shares the same 5 inches (130 mm) stroke as the 426 and 477, with a 4 + 3 ⁄ 8 inches (110 mm) bore. It produced a maximum 146 hp @ 2400 rpm and 350 lb•ft @ 1000 rpm. [2] It was replaced by the 477 and ceased production at the beginning of 1942.
Pontiac's final straight-six engine was the 1966–1969 Pontiac OHC 6 overhead camshaft engine, which was replaced by Chevrolet's straight-six engine and Buick's V6 engine. a The overhead valve Buick Straight-6 petrol engine was introduced in the 1914 Buick Six luxury car and was produced until 1930. Buick did not make another six-cylinder ...
Pontiac's 215 cu in (3.5 L) (1964–1965) was a smaller bore of 3.75 in (95.25 mm) version of the 230 cu in (3.8 L) Chevrolet straight-six engine. One oddity is the crankshaft bolt pattern; in lieu of the Chevrolet V8 bolt pattern (also shared with the rest of the third-generation six), the Pontiac V8 bolt pattern is used.
The Nash Rambler engine is a family of straight-six engines that were produced by Nash Motors and then American Motors Corporation (AMC), and used in Nash, Rambler, and AMC passenger cars from 1940 through 1965. It was succeeded by the AMC straight-6 engine in 1964, a completely new design. The engine evolved in several displacements and was ...
Chevrolet straight-6 engine may refer to: the 299-cubic-inch (4.9 L) T-head engine used in the 1911–1913 Chevrolet Series C Classic Six; the 271-cubic-inch (4.4 L) L-head engine used in the 1914–1915 Chevrolet Light Six; the Chevrolet Stovebolt engine series, introduced in 1929; the Chevrolet Turbo-Thrift engine series, introduced in 1962
Since 1972 Chrysler had not offered a 6 cylinder with sports aspiration but that would change with the release of the Dodge Polara RT, it was a hard top coupe equipped with the new high-performance Slant Six RG 225 or commonly known as Slant Six RT, thanks to the addition of a new Holley 2300 two-barrel carburetor, "3a1" exhaust manifolds, a ...
After the 1974 SD455 was dropped the 1975 Firebird's top performance engine was an 'L78' Pontiac 400 cu in (6.6 L). Pontiac still offered the regular 455 (RPO L75) in its full sized cars, and after a negative public reaction for dropping the 455 engine, it was re-introduced mid-year as an available option for the 1975 Pontiac Trans Am.