if the engine has not been run? My reman long block will have heads on it, but I'm gonna swap P&P heads on it before it goes in.

Negative. Once they are torqued down they should not be reused. (The metal rings around each jug get crushed down to form a seal when they are torqued...they don't return to shape.) If you were just to loosen a head, and torque it right back down again you would likely be OK, but changing the head without a new gasket isn't a good idea.

Alrighty. Thanks.

Call and tell 'em to not attach the heads...or at least, to not torque the head bolts.

And give up the warranty?

I already have another head gasket set. I'm not worried about it anymore.

Surely will do.

Didn't consider that...then again, won't putting aftermarket heads on void the warranty?

not if they dont know