(SWS Part #410-5957). The benefit of a billet aluminum pulley over a cast pulley is equal density. With a cast pulley, the aluminum is poured into a mold and then allowed to cool. This process can create variations in density throughout the pulley.
NEW SWS SBC POLISHED BILLET WATER PUMP PULLEY,SHORT WATER PUMP,2 V-BELT GROOVES
NEW SWS SBC POLISHED BILLET WATER PUMP PULLEY,LONG WATER PUMP,1 V-BELT GROOVE
NEW SWS BBC POLISHED BILLET WATER PUMP PULLEY,LONG WATER PUMP,2 V-BELT GROOVES
NEW SWS SBC LIGHTWEIGHT RACING BELLHOUSING,GM,CHEVY
New SWS SBC Lightweight Racing Bellhousing for GM Fits 153 & 168 Tooth Flywheels
SWS SBC Lightweight Racing Bellhousing Small Block Works with GM Transmissions