Quote:
Originally Posted by blykins
I have to mill the flanges on over 50% of intakes that I use because the flanges are not cut on the correct angle or are slightly off.
This seems to be your issue too, the flanges are not on the right angle.
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Yes, the gasket compression is ok on the top and gradually becomes less towards the bottom. So the manifold face is not parallel to the head face.
The included angle needs to be measured, and then transferred to the manifold as a machined operation.
Easy enough for an engine machinist.
Gary