Moroso Billet Single Groove Crankshaft Pulley - SB Chevrolet - Single Groove - 1968-Earlier (With Short Water Pump) - 30% Reduction - 5.25" O.D 15-NEC-CAP Hedman Hedders Hedder Flange Gaskets

Hedman Hedders Hedder Flange Gaskets For Chevy 396-454- 1-3/4" Tubes

Duration 250 / 260

Improves Throttle Response And Amplifies Engine Sound

The display board was designed for use with the Dial Board Brackets shown below

With more aggressive cam profiles in solid lifter oval track applications

Moroso Billet Single Groove Crankshaft Pulley - SB Chevrolet - Single Groove - 1968-Earlier (With Short Water Pump) - 30% Reduction - 5.25" O.D 15-NEC-CAP Hedman Hedders Hedder Flange GasketsMachined 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