Wieght difference between small block and big block

So on the iron head 360 vs. aluminum headed 440, the diff would be about 70 lbs?

This assumes those weights are correct (though I don't know if those listed are with cast iron manifolds), and that aluminum heads on a big block save 50 pounds.

Local guy can't catch me. He claims its because his engine weighs 250 pounds more than mine. I guess the 80 cubic inches and aluminum heads he's got counts for nothing. LOL

Steve