[WildBill3]

ther are casting #rs on them that might give a clue Michigan bearings come to mind.Headers?? ther are companies here that can sell you a hole kit to rebuild or a nice new rotating assembly to freshen up what you have .You might want to take a compression and leakdown test on your cylinders to get a clue on were you stand now on the wellness of your powerplant.good luck WB3