Moroso Single Groove Crankshaft Pulley - SB Chevrolet - Single Groove - 1969-Later (With Long Water Pump) - 50% Reduction - 4.00" O.D. Helmet Air Inlet the benefits include improved throttle

the benefits include improved throttle response

Engine heat and noise often is a problem with today's modified vehicles packed with high performance components

Compatible with most gasoline ODBII equipped vehicles from 1996 to present

and gels that help you clean

Part Number: 550-849

Moroso Single Groove Crankshaft Pulley - SB Chevrolet - Single Groove - 1969-Later (With Long Water Pump) - 50% Reduction - 4.00" O.D. Helmet Air Inlet the benefits include improved throttlePrecision machined from high grade, lightweight aluminum castings Extra deep belt grooves provide added belt retention during rapid changes in engine RPM Small pulley diameter slows fan, water pump, and alternator speed to reduce horsepower robbing drag High RPM water pump operation is improved, reducing impeller speed below cavitation threshold Use 36 x 17 32" wide belt Moroso Performance Products is one of the worlds most respected suppliers of