Stage 2 SE header bolts & holes

[DrBuick]

I ended up stripping out two of the header bolt holes on my new TA Stage 2 SE heads. The inner five holes are very deep (maybe 3/4") but by the time you put the gasket and the thick header flange, only about 3 threads of the supplied 3/4" bolts engage. The outer two holes are shallow, so the 3/4" bolts need to be used there. Be careful with these. For the inner five I used ARP #400-1211 one inch long SS bolts after repairing the threads on the two damaged ones.

[1972 Stage 1]

Good info Paul. How were you able to tighten the outer two bolts since they are shallow and require the 3/4" bolt?

I want to see some pics of the chassis when you get them. I sent you an email last night so you have my address! :beer

[DrBuick]

The header flange bends inward on the ends since it's only supported on one end. I didn't tighten them as much either.

You can see some of the frame in the members rides section under "The buildup of 3GS"