milling AFR heads
It depends. Was the intake ported to the heads while bolted to the block you're using? If so milling the heads will have more of an effect on alignment. If it's not ported at all or it was ported independently of the heads it probably wasn't perfect to begin with.
For what it's worth, I bought a set of Ls3 heads from LPE and they milled it to 65cc's and my 102 bolted up with no problem. I don't think that would be the biggest of your worries though, I would be more worried about PTV and water pump clearances. Ive had to grind the **** out of my w/p so my N/W TB can fit.
My AFRs are milled to 61cc. No fitment issues with my Fast 90 and NW 90 TB or water pump. They fit fine together both before and after Tony ported them. I've had this on both a ls1 and ls2 block.
Last edited by GTO1_OHIO; Oct 30, 2011 at 08:25 AM.
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