LS7 (dry sump) 8-Rib Belt Conversion Kit For large displacement or high boost applications, an 8-rib conversion is mandatory. Our system will provide everything necessary to convert your system. A custom 8" diameter , SFI approved (7 ¼” for LS7 applications) harmonic balancer provides a 10% overdrive ratio. This provides more belt surface area due to the two extra belt ribs as well as the larger diameter. This larger balancer has the added advantage of allowing the use of a larger supercharger pulley to attain the same boost level or more boost with the same size blower pulley. The larger pulley gives more belt area and more grip. Also included are a power steering pulley, alternator pulley, tensioner pulley and our custom idler pulley that mounts to your OE alternator/power steering bracket. We will also include the necessary spacers and bolts to move your supercharger bracket forward the correct amount so that your belt alignment will be correct. Pulleys alone will not work without the correct spacers and bolts. Ours is the only system to include all these extras. Not included is the actual supercharger pulley itself as there are many variables involved in picking the correct pulley. We stock most sizes for Vortech supercharger units. Notes: C6 Models will need to purchase a new A/C belt. (K040413) For vehicles equipped with alternator decoupler pulleys, you will need a HAZET 2592 Tool or Goodyear 802592 tool and T-50 Torx bit to remove the hub and a M-16x1.5 flange nut to install the supplied 8-rib alternator pulley.
All items will be shipped via Standard Ground Service unless otherwise requested. Many carriers require a physical street address; they will not deliver to a P.O. Box. All freight charges are the customer’s responsibility. Please note that all freight charges quoted are for Standard Ground Service on the price list. We will be happy to quote you charges for other shipping methods. All Items shipped on Friday Next Day Air will be delivered on the following Monday. If you would like Saturday delivery for items shipped on Friday only, please contact us for shipping arrangements. If an item is custom order or on back order, it will ship with the selected shipping service as soon as it is ready. To check if an item is in stock and ready to ship, please call our parts department.
Customers may return new, unused items within 90 days of delivery for a full refund to the original payment method. West Coast Corvette is not responsible for return shipping costs unless it was our error. Please refer to the tables below for return restrictions.
Full refund to original payment method
After 90 Days
10% Restocking fee and store credit
Oversize fees are noted on the product listing. Including but not limited to, wheels, spoilers, splitters, side skirts, any items with initial oversize shipping fees
10% Restocking fee
MGP Calipers, Lloyd mats, Racemesh grills, Speed Lingerie, American Car Craft, Oracle Lighting
Not eligible for return
Used parts, clearance items and parts that have been installed.