360-383 A-debate...max builds need not apply.

Ouch. That MP estimated HP really didn't like the 273/4..200HP? And they have 230HP 318 (E44 code @ flywheel) pie tins but give it a 150HP rating SAE. And the 383 still took a back seat to the 340. Who will ever know with the SAE/Gross ratings.

I think those were what one would expect from a used engine, not new.