1411RE: [Cadillac_Performance_Association] Re: The '49-'62 V8... anything out there?
- Dec 9, 2004Thanks for the additional information re. 425 heads on 500 engine. Are the
differences in the combustion chamber so that I don't need to change out
valve train etc.?
Don't worry too much about the seemingly low hp. ratings, in actual
performance in a light vehicle there is not of much noticable
difference, you could mill the heads but a better choice is to swap
on a set of 425 heads, compression will be about 10:5 and will give
you and easy 40 hp more, not the best breathing for all out racing,
but fine up to around 4500 rpm, making for strong street performance
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