I believe the piston dome is designed like that for a reason and really should be installed right way will it work, well it has been but that don't make it right.but I'm with old jeep if u pull it might as well put new bearings and ring it why not all that money brand new heads take your time do it rings and bearings are cheap compared to heads if you jump on it it won't take long turn few bolts o yea don't forget new oil pump and water pump