Custom Sanden compressor brackets for 1965 273
Update. After a few passes, the ideal V-belt was 11AV1120 (11 mmW = 0.433", 1120 mm long = 44.1"). I forgot if that length standard means the outside circumference (OC) or "average" (half-height). I was misled by that distinction on one belt I tried. Used Goodyear Gatorback 15484. The compressor bottoms out on the T-stat flange so can't access the lowest part of the slot, but enough to just slide the belt on and a 1" gap at other end when tight. If I did again, I might have the compressor inner pulley run on the middle crank pulley, as Bouchillon's brackets do. That might allow a slightly longer SD14 or SD15 to fully clear the T-stat housing, but perhaps requires a later crank damper (plus crank pulleys vary). Exactly where the T-stat sits might vary between intakes also. Also, the mid-pulley would need a different V-belt since it has a larger diameter. In sum, everyone's situation varies and few would have the thicker aluminum water pump on a 1965 engine like mine.
Update. After a few passes, the ideal V-belt was 11AV1120 (11 mmW = 0.433", 1120 mm long = 44.1"). I forgot if that length standard means the outside circumference (OC) or "average" (half-height). I was misled by that distinction on one belt I tried. Used Goodyear Gatorback 15484. The compressor bottoms out on the T-stat flange so can't access the lowest part of the slot, but enough to just slide the belt on and a 1" gap at other end when tight. If I did again, I might have the compressor inner pulley run on the middle crank pulley, as Bouchillon's brackets do. That might allow a slightly longer SD14 or SD15 to fully clear the T-stat housing, but perhaps requires a later crank damper (plus crank pulleys vary). Exactly where the T-stat sits might vary between intakes also. Also, the mid-pulley would need a different V-belt since it has a larger diameter. In sum, everyone's situation varies and few would have the thicker aluminum water pump on a 1965 engine like mine.