Re: hello, I'm new
would NHRA let me put a 455 crank in a 400? it would be basically the same thing just smaller main bearings? I have a 4.21 stroke crank with the 3 inch mains for the 400 i currently have in the car. If anyone has some 66 cast heads for sale let me know. I didn't see the 315 horse 455 on the engine blue print on the NHRA website. What does this motor call for as far as heads intake and carb? I could build the 325 horse 455 that would be an I or H/SA i believe is what it comes out too. this is for the 71' motor.
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