We use and like Permatex Black RTV Sealant.Originally posted by daveb84wh1:
installing ARP head studs what is going to give me the best seal on studs ? least amount of leak
Originally posted by GNXClone:
Is that regular Black RTV or "Ultra" Black RTV? I've found the Ultra RTV brand to be much superior to the standard RTV.
Ultra Gray RTV works nicely too.