Billet Aluminum Pontiac Water Pump Pulley – 1V, 350 – 400, 428, 455, V-Belt

Pontiac Big Block Water Pump Pulley, V-Belt, 1 Groove (350 – 400, 428 & 455)
Made in the USA from 6061-T6 Billet Aluminum
Underdrive Ratio Increases Horsepower by 10 – 20 HP

Pontiac Massive Block Water Pump Pulley, V-Belt, 1 Groove (350 – 400, 428 & 455) Designed to be used with inventory energy steerage and alternator brackets. Software is Pontiac Massive Block engines 1969+. Calls for 1969 or more moderen water pump (four.five” from flange to engine block) and 1968 or more moderen dampener. Pulley Diameter: 6.2″ with 4 bolt development. Pulley Diameter is 6.2″ with 0.625″ pilot diameter.
Pontiac Massive Block Water Pump Pulley, V-Belt, 1 Groove (350 – 400, 428 & 455)
Made in america from 6061-T6 Billet Aluminum
Underdrive Ratio Will increase Horsepower via 10 – 20 HP
Calls for 1968 or more moderen dampener
Calls for 1969 or more moderen water pump (four.five” from flange to engine block)

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