Originally posted by "`92CXhatch"
simple... b18c head will lower compression and b16a head raises... no matter what block the b16a head will be lower than a b18c... but this is good for turbo cars... like me i have a `97 GSR head that i want to trade for a B16... this would make the guy with the B16 have higher compression... this would also give me lower compression... so it is a win win if you find someone to trade like that...
-Keith
that, however is static compression ratio.. which means s**t for the performance of an engine.
the B16A head flows better than the B18C1 head, so its dynamic compression ratio may be the same, or more than the B18C1 head on the same block.
dynamic compression ratio is the ONLY ratio that ultimately matters