Intake Fitment

carfreak6970 said

The machine shop mentioned something along those lines early on in our discussions. He currently wants pictures to see if the intake mounting bolts were contacting the mounting holes in the intake and they were. I just sent those pictures off last night.

However, the engine is currently in the car and an hour away from the machine shop. I hope the machine shop has a better way to measure the angle difference than just an "eye balling" because currently I dont have a way to get the engine out and too him.

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I eyeball every one of them. Every engine I assemble gets put together at least three times. I dry fit the intake without a gasket.


If the bolt holes line up perfectly I know I have to machine the thickness of the gasket I’m going to use PLUS a clean cut.

In other words, I make sure the manifold surface has fresh materiel all the way across and then I take off the gasket thickness.

If the intake is sitting higher than the bolt holes in the head then you add that much more to take off.

If only the upper half of the hole on the head is showing then I know I need to take a clean cut plus the gasket thickness plus half the gasket thickness.

If the manifold is low then you take off half the gasket thickness plus the clean cut.

If the machinist setting up the manifold in the mill knows what he is doing he can correct the angle while he’s in there.

Hence the clean up cut.