So been texting back and forth today with the actual Previous owner of the Polara . He’d parked it in 2001 and given it to his brother who eventually sold it to me.
Apparently the original engine was rebuilt over the winter of 98/99. Full rebuild, new crank, line hone , heads got slightly larger valves and comp cams valve springs. Block was square decked, but not to zero. I may have to put that sucker back in! Cam is original though.
Parked after reverse gear went out in the trans and it’d caught fire.