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Here's How The Chevy 454 V8 Compares To Pontiac's 455 V8Both the Chevy 454 and Pontiac 455 used cast iron blocks and heads and the same 4.25-inch bore and 4.00-inch stroke. The Pontiac 455 used a cast iron intake manifold as opposed to Chevy's 454 ...
Introduced in 1970, the Chevy 454 -- affectionately known as ... Topped with a dual-plane intake manifold ready to accept your carburetor, the 454HO is capable of producing up to 438 horsepower ...
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