I recently purchased this E88 complete head and noticed on arrival that the exhaust valve cam lobe to cylinder #4 is scratched (galled?) :disappoin

All the other lobes appear very good.The block side of the head looks very good. The chambers are free of any carbon or deposits

This head was rebuilt 2,000 mi. ago according to the seller.

My question is: Is the cam trash or is it usable? :nervous:

You should get the cam reground, install resurfaced or new lifters.

Try DeltaCam .

Looks like it was inproperly adjsuted at one time too tight. Can't tell from the pic how bad it really is, may be fine for a long time, may be well on it's way to becoming round. If it is a stock cam, why not replace it with the one on your current head bringing the rockers with it?