value of a ZL 1 clone with a real ZL1 motor

[427king]

[ QUOTE ]
Looks like paint over grime?

[/ QUOTE ] Actually it normally protrudes from the head 1/8 of an inch or more. The fact it is recessed or ground means you should inspect the block a bit better before purchasing to ensure it wasnt alterted so the block could be stamped with the head still on. They also break alot,just might be a coincidence. Check the exhaust manifold side to make sure it isnt restamped, so hard to tell by the pic but it looks a bit smooth on one end of the pad