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Get up to 20 extra horsepower.
Big block Chevrolet: 396-502 ci, billet aluminum, long water pump, (1 groove crank, 1 groove water pump, 1 groove alternator pulley), V-belt pulley kit
By underdriving your crank-driven engine accessories, a performance V-groove underdrive pulley set can give you up to 20 extra horsepower. Belts not included.
Price: $159.95
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