Pulleys: Billet Aluminum Pontiac Crankshaft Pulley - 2V, 350

Billet Aluminum Pontiac Crankshaft Pulley - 2V, 350 - 400, 428, 455, V-Belt Reviews

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Billet Aluminum Pontiac Crankshaft Pulley - 2V, 350 - 400, 428, 455, V-Belt Feature

Pontiac Big Block Crankshaft Pulley, V-Belt, 2 Grooves (350 - 400, 428 & 455)
Made in the USA from 6061-T6 Billet Aluminum
Underdrive Ratio Increases Horsepower by 10 - 20 HP
Requires 1968 or newer dampener
Requires 1969 or newer water pump (4.5" from flange to engine block)

Pontiac Big Block Crankshaft Pulley, V-Belt, 2 Grooves (350 - 400, 428 & 455) Designed for use with stock power steering and alternator brackets. Application is Pontiac Big Block engines 1969+. Requires 1969 or newer water pump (4.5" from flange to engine block) and 1968 or newer dampener. Pulley Diameter: 6.2" with 4 bolt pattern.