Overdrive Pulley Set?
My current water pump pulley measured the best I could with it installed is: 6.75" OD and 3" from the fan mounting surface to the outside edge.
Current crank pulley is a 2-groove for P/S. It measured 6.5" OD and 2.25" from the mounting surface to the outside of inner groove that is used.
I believe these are the standard pulley set for early 70's SB non-A/C model w/ P/S, though I could be wrong. These measurements give a 0.96:1 ratio. I'd love to find a pulley or set that provide a 1.2-1.3:1 ratio.
My current water pump pulley measured the best I could with it installed is: 6.75" OD and 3" from the fan mounting surface to the outside edge.
Current crank pulley is a 2-groove for P/S. It measured 6.5" OD and 2.25" from the mounting surface to the outside of inner groove that is used.
I believe these are the standard pulley set for early 70's SB non-A/C model w/ P/S, though I could be wrong. These measurements give a 0.96:1 ratio. I'd love to find a pulley or set that provide a 1.2-1.3:1 ratio.