Thanks for the help guys. Never put it together that the W, U in separate boxes was the block code. Mine is a WU with a.i.r. from CA. The serial number was stamped in the top of the muncie case. I have not checked the block serial number, but I'm almost positive it does match.
Is Superior Pontiac still around?
I need to check my radiator and see if I have the right one now, thanks.
