Aftermarket 8-Rib Serpentine Pulley System for LS Engines with Whipple 2.9L Superchargers - Engine Builder Magazine

Aftermarket 8-Rib Serpentine Pulley System for LS Engines with Whipple 2.9L Superchargers

Concept OneLS-powered Muscle cars using the Whipple W175FF 2.9-liter blower now have access to the first high-traction eight-rib serpentine pulley kit. Driving a blower that creates up to 10lbs of boost requires adequate belt grip and by increasing the ribbed surface area by 33 percent—substituting eight ribs for the traditional six—Concept One’s latest single-belt system achieves this without belt stretch or slippage.

Created and fully CNC-machined from pure aircraft-quality 6061-T6 billet aluminum, this kit, in common with its predecessors for Magnuson, GM LSA,  and Edelbrock superchargers, is engineered for easy installation and perfect fit with pulley ratios calculated for optimum drivability.

To ease the installation prospects of the fully dressed LS power unit, Concept One relocated the A/C compressor from its original position on the lower right to the upper right. In doing so, LS transplants now possess adequate clearance around most chassis cross-members and other chassis components.

This kit provides a compact, polished Sanden SD-7 compressor as well as a new Delphi aluminum power steering pump. As standard equipment the pump is supplied with Concept One’s exclusive billet mini reservoir or remote reservoir. Also included are a cast aluminum water pump and a 105-amp polished Powermaster one-wire alternator.

Other key components include a heavy-duty tensioner and Goodyear Gatorback belt together with an SFI-approved harmonic balancer. To complete the kit all necessary 8-rib pulleys and mounting brackets are provided. These accommodate the alternator, A/C compressor, power steering and the supercharger idler.

Prepared with either a machined or polished finish or in black or clear anodized finish, prices start at $2,795.

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