Here is a 50 tooth, 8mm HTD aluminum blower pulley. Works with 8mm belts only (HTD or GT).
Replacement Blower Supercharger Pulley 8mm 50 tooth
8MM 50 TOOTH GT BLOWER PULLEY SUPERCHARGER ANODIZED 3-1/2" WEIAND MOONEYHAM
New Steel Drive Hub Coupler with 8MM HTD Pulley for Bert Transmission SB Chevy
Barnes 5 Stage Dry Sump Oil Pump & 8mm HTD Pulley Bert Brinn Rear Mount Style
Blower Drive Service Blower Pulley - 8mm HTD 45 Teeth x 3.500in
