Thread: aluminum heads / gaskets

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Originally Posted by pat mccarthy

well yes .... and No... if you look at the old gaskets and intake they will tell the tail of the inprint if it is leaking sooo . then you should mock it up with old gaskets and check intake that the china rails are not bottom out .if you want to use a new set of gaskets thats up to you

I agree Pat, and that will work fine until you take any kind of a cut on any of the pieces. If you are tearing the motor down to freshen it up without cutting any metal from the block, heads or intake, then yes, go by the imprint of the old intake gaskets.

who.s cutting any thing ? if the intake was leaking then the gasket he had on it will show it leaking and were and then you take intake to a guy like me. he will get it close . then recheck it BUT i been threw many many times on tall deck race engines and some short decks if way off. then it better to take the engine to the shop so it can be fitted to the block the guy checking and the guy cutting works out better if he is the only guy . that why most all engines i build leave with the intake on. if intake is bottom out on china walls the gasket will not show. most all times this holds intake up making for a hell of a leak. if ports are close the intake will not leak from port linement only. but if the intake is warped and would have to be a hell of alot then a clean up will help . angles can be off. i use a feeler set push the intake to the one side of the head intake face side then check air gap top bottom and front and back . but first shim up shim up the china wall