[242177P]

Originally Posted by slowbird

Hate to argue with Langer but Warp6 heads and RA5 heads don't burn the centers out of head gaskets, kind of points back to the paired exhaust ports and heat.

Pretty sure you're both on the same page. Here's the entire post, because context. Note CENTER combustion chambers.

Originally Posted by John Langer

Pontiacs are junk, I dont know why anyone would ever want to try to build a serious race engine out of them. The bore is too small, the strokes are too long. The deck heights are too tall, the valve train geometry is whacked. The push rods are too long. The head bolts are in the wrong place. There isnt enough material between the center combustion chambers, There isnt enough head bolts for the bore spacing. The cranks are too heavy, the main and rod journals are too big. The cooling system is junk. the oil system is junk. The only good thing about them is that you dont have to pull the distributor to change the head gaskets every 7 passes. When I was making under 1000 hp head gaskets would last around 35-40 runs, under 1070 runs 20-25 runs, under 1090hp 10-15 runs, 1117hp, they leak after warming the motor up. A maximum effort Pontiac will never be able to compete with a maximum effort bbc. If I destroked my motor to 500" and put a dry sump on it and 2 dominators I think I could make close to 1100hp. NHRA pro stock BBC's make over 1430hp at the same displacement. That gap will never be closed!