Factory New ZL1 motor...
 

I have a pal with a brand new ZL1 motor, complete, never assembled, no stamping on pad...any idea how much it's worth?
(Never had a gasket touch it...honest)

Re: Factory New ZL1 motor...
 

That would be very unusual. I am no expert in these but they all have their own identity. Chevrolet had various casting numbers and stampimgs on these blocks. I am not sure if this applied to all of them but the one I have inspected closely had a casting number. If you can give the block a really close visual inspection and let us know what you find. All Zl-1s have a base value but this can vary depending on history of the engine as much as condition. Where did it come from?