Camshafts & Valvetrain

Comp Cams GM LS XD-A Adjustable Pushrods 896808 (7.950" - 8.182") The patent-pending XD-A™ Adjustable Pushrods incorporate a top section that slides two inches inside a wider bottom section, with one or two shims captured in-between. Proven to...

Comp Cams GM LS XD-A Adjustable Pushrod 896807 - 7.740 - 7.972 GM LS XD-A™ Adjustable Pushrod The patent-pending XD-A™ Adjustable Pushrods incorporate a top section that slides two inches inside a wider bottom section, with one or two shims...

Comp Cams GM LS XD-A Adjustable Pushrods 896806 (7.530" - 7.762") COMP Cams new XD-A Adjustable pushrods allow you to set preload or lash with non-adjustable rocker arms. These are adjustable in .004" increments over a total range of .232" using shims...

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.

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...