I have a set of 68 302 heads 4v boost my compression up I am using some 1.6 crane roller rockers and am trying to find a good street cam. any suggestions? keeping stock 302 bottom end (1990)
Really depends on which head you have. There are at least 2 C8 heads. Is "4V" cast into the head anywhere?? If so, then it's the rarer 54cc chambered head and will send compression way up (10.0:1 i think?)
They are on par with E7's, but you have the compression bump with the C8 heads. E7's flow better on the exhaust side. I believe you should at least change the exhaust valve seats as well to hardened seats.
By the time you put some $$ into the head though, you would be better off buying a GT-40 or GT40P and milling them down a bit to bump the CR up to the levels of the C8 head.
As for cam and 1.6's...depends on the rest of the combo.
they are the 4v, I have them already just had them machine around.010 each I was going to do a little porting to, but you think I would be better off going with something different
Depends on what you are trying to build up really.
I think those 4V heads are fairly rare. Don't know what the market is for them though.
Are there better heads out there? Without knowing your entire potential combo, i would say Ported E7's, or either the GT40/GT40P head would be a better choice. But like i said...need to know your goals
My goal is to have a good street car that will take off pretty good off the line I'm trying to spend as little bit of money as possible and make it as fast as I can. I got these heads for 220$ with crane roller rockers,screw in studs, valves and springs, just machined. I thought they would be better then my e7s but now I am kinda regretting buying them, have you ever used these heads?