[pastry_chef]

Originally Posted by slowbird

Warp6 heads and RA5 heads don't burn the centers

The split exhaust ports help for sure, but how many 1250 HP plus Warp6 or RA5 heads lay down regular passes at the track? None.

[slowbird]

Originally Posted by pastry_chef

The split exhaust ports help for sure, but how many 1250 HP plus Warp6 or RA5 heads lay down regular passes at the track? None.

I think bossbird would expose head gasket issues on ra5 heads by now. Nitro seems to find the weak link. And again if it was head bolt related why doesn't anyone ever blow out the end cylinders? Why is it that the gasket fails between the center cylinders right where the exhaust valves are everytime and no place else? Why when adding better cooling to that area do the head gaskets last twice as long? To me that all points to heat not a head bolt issue.

[pastry_chef]

Bossbird, the billet head is a different animal it seems.

Originally Posted by mgarblik

Believe it or not, we are still on our first set of head gaskets from 2011!. 10 head studs, 9/16". The secret is the solid, billet head. Thick and uniform around the studs, Eric did a wonderful design job leaving lots of clamp column around each stud. It's clamped down tight and doesn't move.

[slowbird]

Originally Posted by pastry_chef

Bossbird, the billet head is a different animal it seems.

No extra head bolts, they are located in stock location. I agree they're a different animal