Does anyone know what the weights are for a ZZ383, ZZ454 and ZZ502?

SB to BB both all iron, about 105 pounds or so. 575 to 680 or so..

454 to 502, the same at about 680 or so all iron.

Lop off the BB about 60/70 pounds or so for aluminum heads, w/p and intake.

And headers will lighten a BB up some too compared to their big cast-iron exhaust manifolds...

Install a a mini-starter on the BB and lose a bit more weight too..

pdq67

thanks, the ZZ series all have aluminum heads....