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1987 – The valve cover surfaces were changed so that the mounting lip was raised and the bolt location was moved from 4 bolts on the perimeter to 4 bolts along the centerline of the valve covers (this design debuted on the Corvette in 1986, and the Chevrolet 4.3L 90 degree V6 the year before). Also changed were the mounting angles of the two ...
All generation-2 small-block Olds V8s used the same stroke of 3.385 in (86 mm). The big-block engines initially used a forged crankshaft with a stroke of 3.975" for the 1965-1967 425 and 400 CID versions; starting in 1968, both the 400 cu in (6.6 L) and the 455 cu in (7.5 L) big blocks used a stroke of 4.25 in (108 mm), with crankshaft material ...
The W-series was a physically massive engine when compared to the "small-block" Chevrolet engine. It had a dry weight of approximately 665 pounds (302 kg), depending on the type of intake manifold and carburetion systems present. It was 1.5 inches longer, 2.6 inches wider, and 0.84 inches shorter than the 283 "small-block". [13]
The 335-series V8s were overhead valve V8 engines that used a unique short-skirt engine block that was both longer and heavier than that of the existing Ford small block V8. The 335 series incorporated features used on the 385 big-block series, including the canted valve layout, the valve train design, and thin-wall casting technology.
The 4.3 L (262 cu in) also used larger valves than the 229 cu in (3.8 L) V6, with a 1.94-inch (49.3 mm) intake valve and a 1 + 1 ⁄ 2-inch (38.1 mm) exhaust valve (also shared with the 350). [2] In 1986 and 1987, the 4.3 L (262 cu in) engine saw engine design upgrades similar to the Chevrolet small block V8.
The 322 Fireball V8 in a 1956 Buick Century. Buick's first generation V8 was offered from 1953 through 1956; it replaced the Buick straight-eight.While officially called the "Fireball V8" [1] by Buick, it became known by enthusiasts as the "Nailhead" for the unusual vertical alignment of its small-sized valves (Originally it was known to hot-rodders as the "nail valve", because the engine's ...