- Thread starter
- #26
SasaniFab
Proven Member
- 2,433
- 782
- Dec 1, 2013
-
Mexico,
Connecticut
Holy shit, 45 psi on a composite.... I think the key is surface prep number one. The deck surfaces need to be flat for both gaskets. Second I think if your pushing the motor past 30psi l19s are needed esp in a 7 bolt. Tuning is another major factor obviously but you can have a perfect tune and still push coolant if you half assed the assembly. I regret swapping out the oem studs for standard arps........pointless in my eyes. I used a oem head gasket and the material was eaten away from the core of the gasket.Im on a felpro composite L19s @90ft lbs. 850+ awhp @45psi. No issues here and see no need in torquing it any higher. You guys that are over torquing and still having head sealing issues have problems else where. I.E. tune, softened head castings, deck prep....etc