I am currently building a b16 that is sleeved to 84mm and was wondering what head gasket everybody uses? I am leaning toward OEM and was wondering how many of you have your blocks O ringed as well? I plan on running 20-25 psi at the track and 15 psi daily. Thanks.

 

you should be just fine with a stock hg that is overbored to 84mm. i wouldnt oring, no need for 25psi.

 

I'd o-ring it regardless. GE doesnt even charge extra to o-ring so why not get it.