Originally Posted by b16aEGcivic
:eh:
I am pretty sure he needed teh B20 gasket because his b18cs sleeves are bored out to 84mm?? so he couldnt use a stock b18c gasket
Whoa, don't think I'm a dumbass here. Remember, the VTEC heads (PR3, P72 castings) have a VTEC oil supply passage that the B18A/B B20B/Z non-VTEC heads (PR4) don't have... meaning his P72 head won't get proper VTEC oil pressure using a B20Z (PR4 head) gasket which doesn't have the VTEC oil supply passage, as per my understanding.