Torn between 360/408 and 440

This is outside of the box, but I was under the impression that if you put a 440 in an a-body, you will have inference with the heater blower motor? This is hearsay to me so I can't confirm. Just throwing it out there if you still need heat or defrosters.

nope. i had a 440 in a 64 valiant and a 72 demon with stock blower motor and no issues.. used a moroso valve cover..

64valiant017.jpg

Demon engine.jpg