Jotto - tread carefully here with header bolts. With my bb and alloy Brodix heads the length of of the header bolts as sold by ARP (3/4") was insufficient. They were marginal with Hedman headers allowing barely 3/8" inch thread into the head. Changing to Hooker headers with a thicker flange reduced that to 1/4" - ripe for stripping out threads. Real Steel sell loose 12 point stainless ARP bolts that are slightly longer that do the job (1 1/4" I think) And yes, use 12 point as they are easier to tighten up.
BTW for my bb I actually bought an additional stainless 12 point intake bolt set and used them for the headers as they are longer (1 1/4" I seem to recall) - don't know if same thing applies with small block though! Rgds., Ross
Last edited by roscobbc; 08-03-2014 at 07:19 AM.