The waterpump pulley requires special tapered head bolts.
I didn't want to use just regular hex-head bolts or re-use the old studs.
These are extremely difficult to find. I spent nearly 2 hours driving around between Lowes, Home Depot,
Pep Boys and other Hardware stores.
Just FYI, --the exact specs are 5/16" x24 (fine thread) x 1" long.
I could find plenty of 5/16" x18 (course) but no fine threaded or tapered head.
Finally, at an Ace Hardware in Edmond I found some chrome bolts that were exactly what I needed.
Although they were over $4.00 each, by this time, I didn't care.