is it the last bolt? When I put my headers on I noticed that the last bolt on the drivers side was broken off in the head. I think it may have rusted over the years. Just tighten down all of the others and build up the gasket at the end with some copper rtv(high temp stuff) and you'll be fine. No need to pull the motor if it'll still work.
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Vinnie -
00 SS A4- LQ9/LS3/Stalled/3.42s 1.48/11.10/121 mph<-6spd swap in progress.
13 Silverado Z71- Sold 11/16
99 Z28 M6- -H/C/9in - sold 1/13
99 Silverado Z71- The DD - Sold 7/13
03 CBR 600RR - Sold 8/13
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