compression ratio
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Junior User
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compression ratio
is there a way to figure out my compression ratio while my motor is tore down. im in midst of rebuilding my 400 that has been built before and was wondering if i could figure exactly what they built it to. i know one website was telling me something about measureing the stroke bore and this and that and combustion chamber volume but i dont know how to do any of that can you hel-?
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i dont know man. i was reading this one website and it was saying that compression ratio can only be figured by all that stuff and they had formula to figure compression ratio but i cant for the life of me find that dang website again.
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the pistons i have are 40 over but i have not bought them yet. i just got the motor tore down and thats it. and yeah i just have the stock mcc heads on it. i dont know if they have been shaved or anything liike that though. is there a way to tell if they have or not
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naaa shaving wont make much difference, if you use stock type replacement pistons you will have around 8.5-8.7 to 1, you could get some TMIs to raise it to 9.4:1...
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well they pistons are .040 over already and it has a aftermarket cam of some sort if that makes a dif. i dont know what the compression rating on the pistons are though. i didnt put them in and dont know what brand they are.
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