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Old Jun 22, 2015 | 07:41 PM
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Question on 460 Head Swap

Hi,

I have a 70's era smogger 460 motor that has D2VE-AA heads on it. This is a low compression motor with retarded cam etc. I have a pair of heads from a 429 that are C8VE-E that I would like to use instead. Will the 429 heads be a good replacement? I am concerned about what sort of compression ratio this swap will create. Thanks.
 
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Old Jun 22, 2015 | 08:06 PM
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Lots else to consider, but on heads alone, I think this will give you some numbers to work with to determine your CR.

casting-numbers-descriptions-1-index
 
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Old Jun 23, 2015 | 01:26 AM
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Originally Posted by 85e150six4mtod
Lots else to consider, but on heads alone, I think this will give you some numbers to work with to determine your CR.

casting-numbers-descriptions-1-index
Yes, that is great info for sure. But what I think I may be asking is what affect on compression does going from a 100cc open chamber (smogger) to a 75-77cc chamber have on compression? I think the smog motor is probably down low, like maybe 8.5/1, just guessing.
 
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Old Jun 23, 2015 | 11:37 PM
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You need all the specs and a compression ratio calculator.

http://www.summitracing.com/expertad...ion-calculator
 
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