Originally Posted by jeep670
is that for the two piece or one piece header?
pretty much anything has a pattern for bolting it down so as to seal or seat it correctly. ie wheels use a start pattern, and if you want to get more complex heads on some engine have you dance in several steps of torque to bring it down to full tightness while doing a drunken tick tack toe.
if you thighten from the outside in you can end up with a bow but if you go from the inside out the slack is pushed to the edge of the work piece.
83 cj7, white/pearl w/ black trim - 99'ax-15/clocked dana 300 twin sticked - 4"RC lift - HD shackles - 33X10.5 bfg mt's on micky' T 15" classic 2s - HD tierod flipped - custom bumpers with d-rings - winch - flowmaster - obd1 efi swap - 4.6L strocker with com smooth idle cam. soon to be:
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