The mechanic says "Either you need a complete set of new lifters, or
a valve job. Compression is low."

Compression numbers aren't in my possession. Reason for the
diagnosis: engine wouldn't pass smog.

Is there any reason to suspect that a bad smog status could be caused
by low compression? Or is this another "ulterior motive" diagnosis?

Vehicle is a friend's 87 GL.

I'll try to find out more info.

Thanks,
Dave
--
Dave Carpenter

Whatever you wish for me,
May you have twice as much.

"Sometimes I think we're alone in the universe, and sometimes I think
we're not. In either case the idea is quite staggering." -- Arthur C.
Clarke