Moroso Single Groove Crankshaft Pulley - Chevrolet 302-350 - Single Groove - 1969 and Later (With Long Water Pump) - 30% Reduction - 4.95" O.D. H774001 DI20 delivers cutting-edge lubricant technology

DI20 delivers cutting-edge lubricant technology specifically developed for direct injection engines and utilizes an advanced additive package designed to reduce abnormal combustion

3/4 in-30 Spline

Straight through design

The drop-down design routes the fuel line on the right-hand (passenger side) of the carburetor below the linkage and choke housing

Moroso Single Groove Crankshaft Pulley - Chevrolet 302-350 - Single Groove - 1969 and Later (With Long Water Pump) - 30% Reduction - 4.95" O.D. H774001 DI20 delivers cutting-edge lubricant technologyPrecision 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 #MOR64100 and is not representative of actual product shipped.