Post your favorite Mopar Myth.

I always thought that the smallest big block Chevy made was the 348, which was later bored out to make the 409.
I have also seen a 70 Monte Carlo with a factory 402, that had 402, emblems on the fender

The 428 and 409 engines were the "W" series engines. The 366-454 were the Mark IV engines. They were different families.