For sealing the head on my K2 the Options are this
Viton round oring
Honda Quad ring.
I can obtain either one..and Im tending to want to pickup whats readily available.
Will one seal better than the other? I tend to think there will be little difference.
Do I punt and go with the Viton Os?
I know this: Im not going to rely solely on the head gasket to seal anylonger on these
teardowns..no matter how flat the surface seems to be. The V Orings are 75 durometer hardness.