Thanks for the reply dodo, I did some research. The d16a6 head combustion chamber is 38cc, the p29 piston is dome shaped with 7.2cc volume of the dome. With a gasket of d16y8 (2 layers) the compression ratio equal to 10.75:1( by some cr calculator). Also this head is rev limited to 7200RPM. I think ...

Hello to all, First I want to apologize for my english (it's not my native language) or if this tread is in the wrong place. I want to specify that I'm discussing only the sohc non-vtec head's. I've read a lot of threads for d14 with vtec, but I dont want to go with vtecs, because its hard to find z...