Quote Originally Posted by James8026 View Post
454 maybe ? I dunno anything but ford and a little chevy but your saying you couldnt get a big block in say a 69 gto?

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454 is a Chevy. In 1970 GPs got the added option of the new 455. Thats what I put in mine, a 71 or 2 455. The reason to not say big block is because unlike other makes, all Pontiac V8s have the same external dimensions. A 455 bolts right in place of 350, see? Pontiac, Buick, and Olds all made their OWN 350s and 455s back when GM divisions developed powerplants independently from "corporate" which happened in like 78-80. Wiki is your friend on all that. Eyelids must, muscle class dismissed.