Thanks reply,as said must see & measure head,138mm to look for ? Top to face ?
That's a back ground worry @ 92mm bore,but in previous block racing stayed @ 85/90 tempt,but when using a commetic 0.080 5 layer with ARP studs ecu was at fault,abit lean on issue number 3 if played up. So when turned out second race on heat soak,10 minutes in would dump coolant. So hence re block re configure this build.cheer Pete