Valve Springs & Components

Manley Nextek GM LS Dual Valve Springs 221421-16 - Fully Polished Finish Manley Nextek (Next Technology) Valves Springs are made with super clean Hi-Tensile Chrome Silicon Alloy and a design that minimizes stress to ensure durability when used with high...

Manley Nextek GM LS Dual Valve Springs 221435-16 - Fully Polished Finish Manley Nextek (Next Technology) Valves Springs are made with super clean Hi-Tensile Chrome Silicon Alloy and a design that minimizes stress to ensure durability when used with high...

Manley Nextek GM LS Dual Valve Springs 221436-16 - Fully Polished Finish Manley Nextek (Next Technology) Valves Springs are made with super clean Hi-Tensile Chrome Silicon Alloy and a design that minimizes stress to ensure durability when used with high...

Manley Nextek GM LS Beehive Valve Springs 221438-16 - Super Finished Manley Nextek (Next Technology) Valves Springs are made with super clean Hi-Tensile Chrome Silicon Alloy and a design that minimizes stress to ensure durability when used with high...

Manley Nextek GM LS Beehive Valve Springs 221428-16 Manley Nextek (Next Technology) Valves Springs are made with super clean Hi-Tensile Chrome Silicon Alloy and a design that minimizes stress to ensure durability when used with high performance camshafts...

COMP Cams GM LS Valve Spring Shims 4608 Designed for GM LS valve spring pockets of 1.300" OD and 0.520" valve guides. Kit contains 16 each of .015", .030" & .060" thickness shims.

COMP Cams GM LS Valve Spring Shims 4788-16 | .060 Thickness Designed for GM LS valve spring pockets of 1.300" OD and 0.520" valve guides. Available in .015", .030" & .060" thickness.

COMP Cams GM LS Valve Spring Shims 4763-16 | .030" Thickness Designed for GM LS valve spring pockets of 1.300" OD and 0.520" valve guides. Available in .015", .030" & .060" thickness.

COMP Cams GM LS Valve Spring Shims 4717-16 | .015 Thickness Designed for GM LS valve spring pockets of 1.300" OD and 0.520" valve guides. Available in .015", .030" & .060" thickness.

PAC RPM Series GM LS Dual Valve Springs PAC-1238X PAC's RPM Series process uses all of the latest advancements from their circle track and drag racing successes. This new process administered to great designs allows for a performance increase that...

PAC RPM Series GM LS Dual Valve Springs PAC-1237X PAC's RPM Series process uses all of the latest advancements from their circle track and drag racing successes. This new process administered to great designs allows for a performance increase that...

PAC Nitrided GM LS Dual Valve Springs PAC-1335 PAC Premium Processed GM LS Dual Valve Springs are engineered with Nano-Peen Valve Spring Technology. This process along with exitic heat treating provides excellent durability with minimum load loss.