66' Duster with a 340 Hemi? LMAO!

at work.since im known as the guy that has oldmopars i had a coworker comeask me if i had quarter panel patches for his 75 dart 4 door,when i asked him what engine was in he replied that he was puttng a 454chevy in it and had already cut out the inner fenders!!also my 72 duster was owned by a husband and wife team,when i first met them about 6 years ago the husband(a gm guy)told me he was putting a 327chevy in it!!worse,he was serious and had the fabrication skills to do it!also its been 2 different 74-78 newport that i know about that have been converted to the(infamous)5.7L oldsmobile diesel!!they are within 50 milles of each other and never spoken together but both came up with this weird swap on their own