Moroso Double Groove Crankshaft Pulley - Ford Boss 302 - 351C - M - 400 - Double Groove - 4" Diameter Fits All 4 Bolt Dampeners - Reduction Ratio Varies - 4.00" O.D Crow Safety Gear Hydraulic flat tappet lifters are

Hydraulic flat tappet lifters are included with each Performer RPM camshaft

Note when purchasing this harness

Gasket Diameter

Mounting hardware included with 3/4-16 O-ring ports (8 AN)and mounting hardware included with 3/4-16 O-ring ports (8 AN)

1977-1980 Buick Riviera

Moroso Double Groove Crankshaft Pulley - Ford Boss 302 - 351C - M - 400 - Double Groove - 4" Diameter Fits All 4 Bolt Dampeners - Reduction Ratio Varies - 4.00" O.D Crow Safety Gear Hydraulic flat tappet lifters arePrecision 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 #MOR64110 and is for reference only. Actual part shipped will