The S-Drive Plus Eight rib pulley systems have a contact patch that is 33% wider than a standard six rib belt, the eight rib improves belt traction which limits slippage in higher horsepower applications and can handle increased torque loads of 33%. The larger eight rib belt also greatly reduces the chances of Span Vibration(belt whip/belt waves) will have an improved belt life. Our drive system's brackets and pulleys are CNC machined from high quality aluminum. Our same, high efficiency, high horsepower Eight rib system for LS Chevys using Magnuson's Universal Hot Rod Blower Kit. This complete kit comes with 140 amp Powermaster alternator, Maval GM Type II power steering with a plastic reservoir, Tuff Stuff aluminum water pump, Sanden style SD-7 air conditioning compressor, ATI Racing dampner, all American Made billet aluminum brackets and pulleys, Gates high strength spring loaded tensioner and eight rib serpentine belt. S-Drive Plus kits are available in raw machined or highly polished finish as well as a variety of anodized or Fusioncoat colors. Specify finish when ordering.
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