COMP Cams GM 603/604 0.570in Lift 1.077/1.282 OD Beehive Hustler Valve Spring Kit
$375.24
SKU: CCAH604-16
⚠️ SPECIAL ORDER ITEM
This product is currently out of stock at StraightSixImports and must be brought in from the manufacturer. If you're working under a specific timeline, please contact us before ordering to confirm lead time and availability.
Free shipping on most orders over $150
COMP Cams Hustler Valve Springs are an improved version of the popular GM LS6 "blue" valve spring. They are based on popular GM part #12499224 and #12565313 LS6 springs but with 4% higher seat and open loads for better dynamic control, as well as an extra .020" of lift capability. They are an excellent performance upgrade in GM 603/604 and CT525 LS crate Race Applications with tight rules packages.