Camshafts & Valvetrain

PAC-KS12 Hot Rod Series Dual LS Valve Spring Kit - 1.304" O.D. x 0.650 Max Lift - Steel Retainers - 7 Degree Hot Rod Series Dual Spring- PAC Racing has combined components into an easy upgrade spring kit. PAC's valve spring kits come with...

PAC-KS13 Hot Rod Series Beehive Valve Spring Kit - 1.307" O.D. x 0.625 Max Lift - Steel Retainers - 7 Degree Hot Rod Series Beehive- PAC Racing has combined components into an easy upgrade spring kit. Our valve spring kits come with all the...

PAC-KS14 Hot Rod Series Beehive Valve Spring Kit - 1.290" O.D. x 0.600 Max Lift - Steel Retainers - 7 Degree Hot Rod Series Beehive- PAC Racing has combined components into an easy upgrade spring kit. Our valve spring kits come with all...

PAC-L8142 GM LS Mini 8 Degree +.050" Installed Height Valve Locks   

PAC 1.300" Ti-17 Titanium Valve Spring Retainers PAC-R532 PAC Racing Springs is the Racing & Aftermarket Division of Peterson Spring Company. With more than 10 divisions around the world, Peterson Spring is the largest privately held, family owned...

PAC 1.300" Tool Steel Valve Spring Retainers PAC-R632 PAC Racing Springs is the Racing & Aftermarket Division of Peterson Spring Company. With more than 10 divisions around the worls, Peterson Spring is the largest privately held, family owned...

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.

PAC Nitrided GM LS Dual Valve Springs PAC-1529 PAC Nitrided GM LS Dual Valve Springs are used in very high endurance applications. The Nitriding Process give the valve spring a more durable surface while improving compressive stresses. These valve...

PAC RPM Series GM LS Dual Valve Springs PAC-1236X 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-1222X 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...