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Since the engine was similar to the popular small-block Buick V8—now with a cast-iron block and displacement of 300 cu in (4.9 L), the engine was made cheaply at the same factory with much of the same tooling. This engine carried the RPO code KH for the 1964 model year and LH for 1965. In 1966, the code was MH and was renamed the Wildcat V-6.
This was so named because it began with Chevrolet's V8 engines. Chevrolet big-block V8s; Chevrolet small-block V8s; GM Vortec 4300 90° V6; GM Iron Duke RWD inline 4 (early RWD Variants, later versions may use a FWD pattern, and have two possible starter locations)
The aluminum V8 was replaced by conventional cast-iron block V8s of 300 cubic inches for the Buick Special/Skylark and 330 inches for the Oldsmobile F-85/Cutlass, while Pontiac carried over its 326 cubic-inch V8 to the '64 Tempest/LeMans line while switching the base engine from the four-cylinder to a 215 cubic-inch inline six-cylinder.
In the past when it was called GM-Saginaw Product Company (SPC) a cloverleaf casting symbol mark was cast onto the iron component. [1] [2] The location has been the primary source of engine block and cylinder heads for all of GM's engines, to include Oldsmobile, Pontiac, Cadillac, Chevrolet, Buick and GMC for most of the 20th century.
The High Value engine family from General Motors is a group of cam-in-block or overhead valve V6 engines.These engines feature cast iron blocks and aluminum heads, and use the same 60° vee bank as the 60° V6 family they are based on, but the new 99 mm (3.90 in) bore required offsetting the bores by 1.5 mm (0.059 in) away from the engine center line.
The GM Ecotec engine, also known by its codename L850, is a family of all-aluminium inline-four engines, displacing between 1.2 and 2.5 litres.Confusingly, the Ecotec name was also applied to both the Buick V6 Engine when used in Holden Vehicles, as well as the final DOHC derivatives of the previous GM Family II engine; the architecture was substantially re-engineered for this new Ecotec ...
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The capacity of the V6 engine was increased from 198 to 225 cubic inches, while the aluminum V8 was replaced by a new cast iron-block 300 cubic inch V8 with aluminum cylinder heads. In 1965, cast iron heads replaced the problematic aluminum ones.