Surface rust on cylinder heads

moper said

I'm assuming they have been done and are now rusty? ... If this is the usual "light film" of surface rust...

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Correct. Guy had a VJ done, then they sat. Heads are covered in a lovely orange - looks to be a little more than the usual 'light film'.

I would not sand blast them myself for reasons stated above. Local machine shop offers 'glass peen' service for cylinder heads, might look into that.

Mostly curious as to whether the caustic bath wold take care of it.