These are the individual crank pulley rings used with our Interchangeable Crank Pulley Kit for the GM LSA 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, and black-anodized for long-lasting good looks. The ring dimensions listed are as measured from belt surface to belt surface. These measurements do not include the flanges of the pulley.
Please note that 9.10" and 9.55" rings require the use of our 50mm crank idler pulley, and that 10.00" & 10.50" rings require the use of our idler relocation bracket and the 50mm idler pulley. These items are listed elsewhere in this section.
* Requires interchangeable crank pulley.
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Products sold on this website are intended for “off-road” use and may not conform to local emissions laws. Please verify your local emissions regulations before street use.
WARNING: The products we sell can put you near a vehicle, which emits chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.. Please review the link before purchase. www.p65warnings.ca.gov
New Era Performance branded products carry a limited lifetime warranty on craftsmanship unless otherwise specified. Warranty claims on all other products should be directed to the original manufacturer of that product.
Returns are accepted within 30 days of original purchase. Items must be unopened, uninstalled and in original packaging. A 20% re-stocking fee applies to all returns. Shipping is non-refundable. Prior authorization required for all returns.