benefits of using ARP head bolts over standard ones (not running over a bar of boost) ? benefits of using a 1.2mm head gasket (not running over a bar of boost) ? When rebuilding my bottom end, should i renew the Rod bolts and nuts , as they are Stretch bolts? and can anyone get hold of these? any porting i can do on the bottom end to improve oil flow ? Best oil to used when running in ....and then oil to use once run in is complete? are the whole engine gasket sets the same for ep82 and ep91 ? think that all for now thanks very much guys