In the 1960s and 1970s, Chevrolet and Pontiac both offered a pushrod V8 engine with an advertised displacement of 400 cubic inches. Considering that both carmakers are (were?) sub-brands of parent ...
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1967 GTO 400 engines compared: HO vs Ram Air
The 1967 Pontiac GTO gave buyers a rare choice between two distinct 400 cubic inch performance paths, the 400 HO and the Ram Air package. Each engine delivered serious speed, but they did it with ...
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Pontiac’s 1967 GTO 400 had an identity crisis—and it was glorious
The 1967 Pontiac GTO marked a turning point for muscle car engines, with a new 400-cubic-inch V8 that came in several distinct performance flavors. For enthusiasts trying to decode the difference ...
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