I've been debating what head gaskets/bolts to buy also. I'm tuning in to see what I can learn.
It looks to me that RJC is using an origional GM gasket but adhereing it by using a special glue/sealant. The picture on their website even shows the head gaskets in GM packaging. Does that glue/sealant make the factory gasket that much better?
The origional GM headgasket worked fine for the first 19 years of my cars life. Now I'm redoing the motor and adding a bigger turbo. As long as I stay away from detonation will GM origionals work again or will the increased giddie-up increase the demands on my headgaskets past what they were designed for?
Sorry if I'm stealing your thread
Eric