ProComp/Speedmaster aluminum heads

8553 Felpro

Those are what my oldest son has on his 360. It is 11:1 with eddy heads. He decked his block so the pistons were .015 out of the hole. Although they are considered a cheap gasket He has had no problems. He put that motor together when he was 18, an he is 25 now. Motor is in his only car. driven daily.