The heads have a .003" warp to them; the cam journals are off by .002".

Are the bends going in different directions? If not hot press the heads to get the bearing journals back in line.

Its also just about impossible to say what the heads were like before the overheat, the heads donÆt always warp just one way. When really hot and clamped down by the block all kinds of things can happen. Part of this is depends on how the cam surface is tied to the deck and the other part is what residual stresses were in the casting.

While Frank has a point that .002" is not a huge amount to be out I would not set an engine up that way and there is no way to know how the bearing was running before the overheat. Part of this is that the heads were clamped down to the block so the running alignment would have been different.

If possible I would get a second opinion from another shop.

The last shop I used told me my 2.6 head was junk. I took it back and did the straightening work myself. When I brought it back to get a skim coat taken off the deck and the seats cut it was funny to have the machinist asking me all kinds of questions about how I did it.

This is a common method for shops that specialize in aluminum heads.

Kevin