[SilverMiner]

Captainfab - thank you so much for your useful and accurate replies. I've contacted Lunati, and sure enough the part numbers you gave were spot on, and are on their way from Summit post haste.

All told this little cam project is costing more than I had originally expected what with new tools required and such, but it's the sort of thing I've wanted to tackle since I started reading Hot Rod and Four Wheeler how-to articles back in the late 70's. Now with the help of this forum and YouTube videos I'm confident I will succeed and have a rip snorting new engine in my old Suburban.