Valve Spring - Hot Rod Series - Dual Spring / Damper - 492 lb/in Spring Rate - 1.130 in Coil Bind - 1.540 in OD - Set of 16

Upgrade your engine with PAC RACING SPRINGS Valve Springs - HR Series (16). Designed for hot rod enthusiasts seeking power and efficiency, these dual springs offer a spring rate of 391 lb/in and coil bind of 1.050 in for peak performance at high RPMs...

Valve Spring - Hot Rod Series - Dual Spring - 394 lb/in Spring Rate - 1.06 in Coil Bind - 1.459 in OD - Set of 16

Elevate your engine's performance with the PAC RACING SPRINGS HR Series Valve Springs. This set of 16 top-of-the-line dual springs boasts a 370 lb/in spring rate, ensuring optimal valvetrain control and reliability. Crafted for GM LS-Series engines,...

Valve Spring - Hot Rod Series - Dual Spring - 370 lb/in Spring Rate - 1.010 in Coil Bind - 1.290 in OD - Set of 16

Elevate your engine performance with the PAC RACING SPRINGS Valve Springs - HR Series (16). These dual hot rod series springs boast a hefty 392 lb/in spring rate, providing optimal valve control and durability for your GM LS-Series engine. Engineered for...