Rono. In trying to verify that it is the original engine (without checking the rear crank flange, the bore, or the crank main caps) look to see IF it has the
- G heads (all 272, 292, & 312 without the supercharger used them; suggests original application)
- engine block casting number ECZ 6015-C (all 292 and 312 '57 blocks used this casting number; suggests original application)
Hope this helps, Ron. Best Wishes!
Charlie
NoShortcuts
a.k.a. Charlie Brown
near Syracuse, New York