Metco Crank Pulley Rings - Clearance 2012-2024 Camaro ZL1 & 2009-2019 Cadillac CTS-V

Features:

• Multiple Ring Sizes
• Standard 8-Rib Drive
• CNC Machined Billet Aluminum
• Anodized Black Finish
• Requires Innovators West Balancer

These are the individual crank pulley rings used with our Interchangeable Crank Pulley Kit for the GM LSA and LT4 engine. If you have our kit installed on your car, you can buy the rings separately for a quick and easy change to the boost level.

These crank pulley rings are precision-machined from billet aluminum on a CNC lathe to ensure exacting dimensions, no runout, and the proper groove shape for maximum belt engagement. Each ring is black-anodized for long-lasting good looks and to provide the optimum surface for the ribbed side of the belt. The ring dimensions shown are effective diameters, as measured from belt-surface to belt-surface. These measurements do not include the flanges of the pulley.

LSA Applications:

For LSA applications, no idler pulley changes are necessary when using the 8.60" & 9.10" pulley rings. When using a 9.55? or larger ring in an LSA application, the crank idler pulley must be re-positioned for clearance.

LT4 Applications:

In LT4 applications, pulley rings as large as 10.0" can be used without changing or relocating idler pulleys on the blower drive.

Ring Options:

+2 lbs (8.60") - 7.5% OD

+3 lbs (9.10") - 13.6% OD

+4.5 lbs (9.55") - 19.6% OD

+5.5 lbs (10.00") - 25% OD

+6.5 lbs (10.50") - 31% OD

Note: Innovators West crank balancer required for proper installation and operation.

Part Number: MCR000

*Our Clearance products are brand new, never been opened, overstock and/or discontinued products. They are sold as-is and cannot be returned.