Thread: How much to mill on intake

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I wouldn't do 0.080" myself. Gaskets compress a little, and if you go too far... I would take 0.025"-0.030" to start, and test fit. And, one big thing you need to keep in mind, if you cut too much off, the valley rails will hit. Use silicone and not the rubber end rails too.

Originally Posted by 69Bee

I wouldn't do 0.080" myself. Gaskets compress a little, and if you go too far... I would take 0.025"-0.030" to start, and test fit. And, one big thing you need to keep in mind, if you cut too much off, the valley rails will hit. Use silicone and not the rubber end rails too.

Too late just picked up the intake. I did read that dart intakes require milling out of the box on oem heads.