Best headgasket for modified 305 build?
Hey there guys, been around on the forums for a longg time now and im working on another 305 motor for my new 86 z28 that I have. Ive got a few questions about which headgasket to use on my 305 build that im doing. Looking for some technical data, as most of the 305 gaskets ive found dont list a bore diameter or compressed thickness in their descriptions?
The only 305 application headgasket ive found with the data I need is the mr.gasket one #5780G which is a .028 compressed thickness with a 3.87 bore diameter. My problem is most of the performance (thin) headgaskets ive found are all a 4.1xx bore which I know is too big. I have the block decked so the piston is .012 in the hole and the heads are milled to a 52cc. Im trying to keep quench tight on the motor, thats why im concerned on the gaskets. Has anyone used the felpro #8510PT? What is the diameter and thickness of that gasket? What do you recomend?