The Stovebolt Site Forums The Shop Area Engine Shop Chevy 235 Exhaust/ intake manifold

Mike, I'm not sure I understand your question. I've always used the metal type gasket between the exhaust manifold and the intake manifold and I've never had a problem. As for the intake manifold and exhaust manifold bolting to the head, I've never had a problem with leakage using that same style gasket, either...However the late Evan Ritter (Coilover here) showed me how he solved this problem for a straight 8 he owned. He took the high temp RTV gasket sealer (red) and made a ring about 1/8" in diameter about 1/8" from the inside edge of each hole of the gasket (on both sides of the gasket). He hung the gasket and let it sit undisturbed until it skinned over (can't remember but think it may have been 15 minutes). Then he set the gasket in place over the studs, installed the manifolds and tightened each one as the manual said...tighten the exhaust manifold to the intake manifold after both have been torqued to the head correctly. He said he let it skin over so it would compress and seal but not squish out and run all over the place and the manifold had been in use around 12 years when he showed it to me. Hope that helps.

I asked him about the Remflex gasket and he said they had tried them, had unexpected failures and had decided the product didn't live up to the claims.