The engine may have been changed,looks like a 389,no GMC on valve cover.
Engine is stuck.I have a gallon of WD-40,I'll try that before I pull it out.If that don't work I've got a 228 I may drop in.


_____________
Floyd

If we choose being kind over being right,we will
be right every time.
Knowledge is a poor substitute for experience.
Remember what is precious to another, may not be to you, but it
is precious nonetheless.

1948 Chevy 2-Ton