Help me win this argument 400 in a 72.

roccodart440 said
Engine Weights for reference.

Mopar 273-340 "A" V8 525Lbs

Mopar 360 "A" 550Lbs

Mopar 400B V8 620

Now you are crazy to build an engine without the many available excellent
aluminum cylinder heads....and aluminum water pump, housing and intake.

Suddenly, the 400 now weighs about 500 lbs and you can make it a 496
without too much trouble. Just don't forget to adorn it with 361 emblems.