How to ID a real MP 360 crate magnum, id the HP rating, and what's it worth?

@67Dart273

The quickest way to determine if it's a 300 HP Magnum or a 320 HP Magnum is to look at the cylinder heads.

Under the leftmost exhaust port, if it's casted "R/T" on the head it's a 320 HP Magnum

300 HP Commando- LA motor: dual plane OE copy intake, high swirl production heads (1.88 intake, .474-280-60 flat tappet purple cam) .1993-1994 MP catalog and earlier P/N P4529783

300 HP Magnum- magnum based motor: dual plane OE copy intake, with production heads w/1.92 intake, .385/.401-250/264 roller cam. 1995 to at least 2002 MP catalog P/N P5249498

320 HP Magnum- magnum based motor: dual plane OE copy intake, with R/T heads w/2.02 intake, .385/.401-250/264 roller cam. Sometime after 2002 to at least 2007 MP catalog P/N P5153476