If you put a nice refurbished head on top of an old bottom end, you run an elevated risk of the engine quickly turning into a heavy smoker (good-sealing head pulls oil past worn rings) and/or finishing off the old bearings in short order. How much of an elevated risk depends on how much wear/how many miles on the bottom end.
So is there a win in this situation without yanking out the whole motor? I don’t have that time or that money. I just wanted to replace a gasket for Pete’s sake. Lol
