Quote:
Originally posted by PaulC
I've heard that high revs on a cold engine places a lot of stress on head gaskets. I believe the theory is that the block and heads are cold and heven't yet expanded enough to firmly sandwich the gasket between the head and block.
Or this could just be B.S. Anyone heard of this?
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The theory is that since the block/head are of a different material than the gasket, they have different thermal expansion characteristics. On an inline-6 engine, this difference in expansion characteristics is more pronounced than in a V-6, because the inline-6 block is longer. As such, you hear about head gasket failures often on inline-sixes.
at least, that's what i've read ...