Moroso Billet Single Groove Crankshaft Pulley - BB Chevrolet - Single Groove - 1968-Earlier (With Short Water Pump) - 25% Reduction - 5.40" O.D. R060002L Does not fit TH350C models

Does not fit TH350C models with locking torque converter

Shrink sleeve works great when dou-bling up 1" wide spring steel

Bolt On Bars

This direct plug-and-play unit is compatible with all FAST XFI 2

Moroso Billet Single Groove Crankshaft Pulley - BB Chevrolet - Single Groove - 1968-Earlier (With Short Water Pump) - 25% Reduction - 5.40" O.D. R060002L Does not fit TH350C modelsMachined from solid billets of the highest grade aircraft aluminum for maximum durability Deep precision machined grooves ensure belt retention even during extreme changes in engine RPM When crankshaft and water pump pulleys are used together, water pump speed is reduced by approximately 30% Hard coat anodized for extended life Moroso Performance Products is one of the worlds most respected suppliers of automotive equipment for racing and street