10 Rib Crank Pulley - C7 Corvette / Z06 - LT1 / LT4

Maximize performance and efficiency with our precisely engineered THP Engineering C7 Corvette lower pulley crafted to perfectly coincide with the trusted ATI Super Damper. Compatible with the LT1/LT4 10 rib Supercharger Belt Drive System, this addition will elevate your vehicle's capabilities to the next level.

These +15% (9.24") or +22% (9.80") overdrive crank pulley features 10 ribs (additional 2 ribs forward) with a Hard Anodized surface for long lasting performance.

Note: For DRY SUMP vehicles only. Will not mount to stock crankshaft pulley, requires ATI damper #917315 for fitment.

Too High PSI shipping & returns

• Processing: please allow 2-3 business days. Custom items (lids, valve covers) need an extra 7-10 business days.
• Returns: new, unused and uninstalled parts in their original packaging with all components, requested within 30 days of purchase. A return authorization (RMA) is required before shipping anything back.
• Not returnable: used, installed or damaged parts, items without original packaging or missing components, and custom or special-order parts.
• Fees: 15% restocking fee on eligible returns; outbound shipping is non-refundable and return shipping is paid by the customer. Orders cancelled before shipment carry a 3% processing fee.

To start a return or ask a question, contact us with your order number.