Moroso Single Groove Crankshaft Pulley - Chevrolet 396-454 - Single Groove - Pre-1969 (With Short Water Pump) - 30% Reduction - 5.25" O.D. H763CBFM High quality die-cast aluminum thermostatic

High quality die-cast aluminum thermostatic sandwich adapter with 3/8" NPT ports and an O-ring diameter of 2 3/4"

Rear Cable Exit Favors Rear Engined Dragsters

1954-1957 Chevrolet One-Fifty Series

The finest high quality

Moroso Single Groove Crankshaft Pulley - Chevrolet 396-454 - Single Groove - Pre-1969 (With Short Water Pump) - 30% Reduction - 5.25" O.D. H763CBFM High quality die-cast aluminum thermostaticPrecision 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 NOTE: Image shows #MOR64050 and is not representative of actual product shipped.