Does anyone have dimensions for the Big Block Pulley for a TRW Small Pump. This was the pump used on most A and B body cars. The parts book calls out 2 for the V8 (including hemi) One as Non AC and one as AC. Though one parts book said towing/non towing package.

Also, did all pulley have vendor ID and date code stamp, or just most.

I have 2 pulleys that have a slight difference in off set, both look like the BB offset. One came off a 66 earlier pump with vertical return line, other came off 67 later with small rear facing return line. Both have 4 3/4" OD, but the 66 or earlier one is 3/16" taller and does not have vendor Id number stamps. The other is the 67 and does have typical stamping.