PToombs wrote:Basicly, o-rings are grooves cut in the head, a piece of wire is inserted in the groove, and it crimps the head gasket tighter.
Firerings are grooves cut in the block, bigger groove, bigger wire. You need a special head gasket for these.
At least that's the way I under stand it.
By the way, a Head Shop is where you go to get rolling papers, bongs, and other druggie paraphenalia. My buddy took me to one once.
Darn terminology gets me every time sometimes I just can't find the right words (just ask my wife ) and thanks for the insight never got into the "scene"(drugs, ect.)