Upgrade your GM LS engine with the high-performance 1.274 Dual Valve Spring by PAC Racing Springs. These dual springs boast a 550 lb/in Spring Rate, ensuring optimal valve control and enhanced engine performance. With a 1.045 inch Coil Bind and 1.274...

Valve Spring - RPM Series - Dual Spring - 550 lb/in Spring Rate - 1.045 in Coil Bind - 1.274 in OD - GM LS-Series - Set of 16

Valve Spring - 1300 Series Drag Race - Dual Spring - 673 lb/in Spring Rate - 0.971 in Coil Bind - 1.274 in OD - Set of 16

Valve Spring - RPM Series - Dual Spring - 550 lb/in Spring Rate - 1.045 in Coil Bind - 1.274 in OD - GM LS-Series - Set of 16

Valve Spring - RPM Series - Dual Spring - 600 lb/in Spring Rate - 0.985 in Coil Bind - 1.274 in OD - GM LS-Series - Set of 16

Valve Spring Kit - Beehive Spring - 412 lb/in Rate - 1.150 in Coil Bind - 1.280 in OD - Locks / Chromoly Retainers / Seals - Kit