Ok so when i get on it hard pulling a decent load uphill with boost at 35-40 and pyro at 1000-1100 i am puking coolant due to blown head gasket. I was towing with 18 degrees of timing and I thats just to much i figure. So its set at 15 now.

Now for the question:

My o-rings are ten thousands I have heard that this is great for contact pressure but it is in such a small area that it can be bad.

Should in get shorter rings and if so what size.

I had 40,000 on the last head gasket so I figure the higher timing and the towing must have done it. anything would be helpful right now I don't wanna do the head gasket with those rings if they are not optimal for my application and I really am over the beating the tar out of my pickup just goin for reliable

Hows it go again FAST CHEAP RELIABLE pick any two right