low comp need advice

[genxxxracer]

After putting my head back on the shop did a compression test and found the following
150 125 60 30

They suggested that they yank the block and put in new pistons and rings. A friend of mine works at a machine shop and said he didnt think that the compression could be that low unless there were problems with the head. Does anyone here have any suggestions for me. Or know of any other tests that can be done to confirm.

Brent

 

[Defiant]

Yeah, a wet test. Sounds like bent valves. Lose a belt, or had belt work done recently?