posted December 25, 2001 10:55 PM
I was checking the numbers of the heads i'm going to run on my 350 and one is a 64cc chamber and the other is a 62cc chamber. What problems will I run into running these different heads? They were ran on an engine together, didnt notice any problems.
sdhnc29 Dirt Freak
Total posts: 467
posted December 25, 2001 11:55 PM
If it's a lower compression engine , you will probably notice any difference at all . But once you get above 13:1 , one or two cc's will make a big difference in compression ratio . You can take your 64cc head and have it cut down to 62cc's , and then you will be ok no matter what . If you choose to do this , have your machinist take .013" off the head . It takes roughly .0065" to get rid of one CC on your average Chevy combustion chamber .
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