I have a set of 67 318 heads that are supposed to be 57 cc measuring at 63 cc.... :banghead:
My brother once gave me a 318 short block with 10.5 forged pistons in it. I used the top half of my 68 318 to complete it and throw it in my car for under $400 out of pocket. It would overheat when the temp got above 80° due to the high compression...
I installed a set of 77 360 heads and never had another problem with it. There was enough of a compression drop to get it to run on cheap pump gas, it didn't need premium...
