Blower Drive Service 8mm HTD Pulley - 56T x 3.500 931075 This is the large size

This is the large size version with a 20 degree angle

weld-in 3-1/2" long threaded pipe adapters

195 Degree F On

Adapter Fitting 12AN To 3/4"NPT Aluminum 90 Degree

491 in Shaft

Blower Drive Service 8mm HTD Pulley - 56T x 3.500 931075 This is the large sizeProduct Description: Supercharger Pulley HTD 3 1 2 in Wide 56 Tooth 8 mm Pitch Aluminum Polished Sold Individually Superchargers are one of the most popular engine additions for those who desire big performance gains. Blower Drive Service offers every aspect of super charging. Whether you? re looking for complete kits or a certain piece for your existing setup, BDS is the company to look to.