Indy/RHS X HEADS GASKET UPDATE

By looking at the 1008 vs the 519SD gasket that I have, it seems that there is MORE metal around the cylinders which I tend to like if I end up using them which will make me feel safer I guess?
The SD in the gasket is supposed to stand for SUPER DUTY if that means anything and they cost more than the 1008 for some reason??

I just need to put the darn thing together and RUN the Piss out of it!!!

Cant wait!!!

cool.

The 1008's for 10.1 +comp

The metal ring, not that it doesn't have integral value, is just a flame ring that if wasn't there the flame/combustion would burn away the gasket.