Weights of components

The early Hemi is a 354 all iron.

The Later Hemi is an iron mega block 526" with aluminum head and intake an is at 606lbs

The 440 is all iron other than the intake.

The 400 block is bare block stock bore 226lbs

The Hemi block is the iron Mega block at 290lbs. This is un-bored weight so it would be lower after boring.

The 8-3/4" is out of a 58 Chrysler and is wider than any A-body setup, therefore heavier.