The 600+ neighborhood is what I would expect for the motor. Don't forget the bellhousing, flywheel and clutch when estimating the weight of this stuff too.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more... It's true. I really don't do anything but browse the Internet looking for trouble...