your friend is dead wrong, this is not a 350 Chevy bottom end..........needs shop time...or make a bet with him, he can build it for you at his cost, if it lasts more then 500 miles you'll pay him, and when it blows up, hes buying you another engine too, .....see if he will take that BET cause the fail rate is that high. we call it a 200 mile engine. seen it happen every time ones rebuilt in the garage with zero machine shop work done.