Why?

Went back and watched the Powerblock TV episode where they weighted a Gen III Hemi. Long block with intake (blower intake so no carbs, or blower), valve covers, front cover and oil pan and an electric water pump, but no PS, alternator, AC compressor and no exhaust. Total was 509# on the scale. Time you dress it completely, I doubt there is much difference between an iron LA and that Hemi.

Don't know if it was a 6.1 or 5.7, though. Might make a little difference, but not 80#.