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1972 455 rocket engine

Updated: 10/26/2022
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12y ago

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I am not sure what your question is but the term rocket really has no meaning in relation to any specific olds v8-it just means that it is not a flathead motor. olds and Cadillac introduced the first engines in cars that were not flathead engines in 1949 and Oldsmobile needed a new catchy name for their new engine-since engines at that time had no (rocker arms) for valve trane this was something new and someone decided to call the engine rocket. as far as the 72 455 goes they had anywhere from 225 bhp to 300 bhp depending on application. the bore is 4.13" and stroke is 4.25" and should only have a 8 to 1 compression ratio with low compression pistons-olds determined compression ratio with dish in pistons not cylinder head-although D cast heads had a smaller combustion chamber than the rest

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Q: 1972 455 rocket engine
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