I have a crx with a jdm b16a swap in it. All stock internals with aem cam gears. How much can i mill my head or what are the diffferent choices i have with how far i can mill it? whats the maximum amount that can be removed and still have worryless valve clearence? please help in any way possible. thanks

 

with stock pistons and cams, valve clearance would rarely be an issue. i wouldnt mill any more than .030", although i have heard of people milling .035"

 

mine was milled 38 thousanths

 

ive seen .60 and still safe with itr cams.

just beware of the loose timing belt.
and tune the car.

 

i had 60 thou off a GSR head with ITR cams, and this was a GSR block with ITR pistons. compression was like 12.2:1 i think, and even with the gears advanced +6 and -6 when i was assembling the motor, it was all good.