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The 1-3/4" tube size is the perfect upgrade for stroker motors and engines that have limited clearance issues and still require a free flowing header
6L V8 1975 - 1978 GMC K25 400/6
Steel construction with black powder coated finish
8 V8 2001 - 2013 GMC Sierra 1500 SL 325/5
2L V8 1979 - 1981 Chrysler Newport 318/5
APR 3.0 TFSI Supercharger Drive and Crank Pulley with Belt (Press on) - MS100184 97GPHREDELECTRICFUELPUMP The 1-3/4" tube size isOverview: APR's Supercharger Drive Pulley Upgrade decreases the diameter of the factory pulley from ~63. 25mm to 57. 75mm, which in turn spins the supercharger ~9. 5% faster. This results in a healthy bump in horsepower and torque across the entire RPM range with the supercharger operating at a higher rate of speed. The pulley is CNC machined from billet stainless steel, e coated black for an OEM appearance and is press fitted to the factory
US$ 24.95
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US$ 199.99
