There is a guy at my local track runs an old Belvedere with a Chevy Big Block... the car is named "RATIFIED" and I think it is cool in part because it is unapologetically different. I don't think the Chevy guys will give you flack but the Mopar crowd will be a mixed bag.

If it makes you happy and you're willing to go through the effort I say more power to ya!

-Chris