Originally Posted by
cossynut2
I have a 200 block, machined to take wire rings at the top, group A spec head, group A head gasket, pocketed low comp pistons, run 2 bar boost at 450 bhp and have done nearly 60k miles with no issues. Old school way but it still works.
i hear from owners the group a gasket is fine.. the cometic gasket dont last many miles ...also i hear from mechanics generaly when a gasket is thick like 2mm and above is risk on big power ..they failed easy ..