Newer Aluminum W/P on '65 273 with A/C

Thanks Redfish. I forgot to mention that I installed a later timing cover (mine was corroded anyway), and had to cut another mark in the damper for the new timing mark. Best to use a piston stop to find TDC for that. I temporarily rigged up the original bolt-on timing tab for that, but it doesn't quite fit around the tube.

Redfish is correct that pulleys are confusing, without much info on what is out there between different years, dampers, factory AC, different pwr steering pumps, cars vs trucks or vans, etc. Many of the after-market alum pulleys won't work for you, but you won't know that until you try (how would I know?). I recall that Bouichillon had some of the better info on the parts they sell. Personally, I wouldn't invest much into re-engineering for the RV-2 compressor. It is reliable, but so heavy they put different torsion bars in AC cars. A new Sanden is much smaller, lighter, and more efficient.