I have an old 302 i pulled from a truck originally, that was blowing white smoke when it died. Which i belive would point to a blown headgasket. The motor wasn't very high mileage, but did have some oil pressure issues, so i plan on doing main bearings while i'm down there with a new high volume oil pump. Is it worth it to even try to band-aide it for now? or should i just go ahead and redo the entire engine?