anyone try the ARP stainless bolts w/ the smaller 5/16 head? im sick of dealing with the stage 8 bolts. ive tightend them 3 or 4 times and they still back off. they dont fall out but back out enough to create a leak

 

I've got stainless steel ARP 1" 12 point header bolts. The 12 point head makes it great for getting a wrench on there with the limited room under the hood, and i have never had a problem with them backing out. Just make sure you retighten them if needed after a couple heat cycles.

 

I've used the ARP header bolts before and had no problems. As mentioned above, you still should check them after a few cycles to make sure they are snug.