Manley Oval Track NexTek Series 1.56in Dia .750in lift High Performance Valve Springs (Set of 16) - 221442-16

From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most...

Manley Circle Track Roller Polished NexTek Series Valve Springs - 221441P-16

From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most...

Manley NexTek Series 1.570 OD .760 ID 1.190in Coil Bind H Valve Springs - Set of 16 - 221440P-16

From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most...

Manley Chrysler Hemi 6.4L NexTek Series High Performance Valve Springs .650 Max Lift - 221439-16

From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most...

Manley Chrysler Hemi 6.4L NexTek Series High Performance Valve Springs .650 Max Lift - Single - 221439-1

From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most...

Manley GM LS Series Super Finished H.P. Valve Springs .650 Max Lift (16 Pieces) - 221438-16

From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most...

Manley Ford 4.6L/5.4L SOHC NexTek Series High Performance Valve Springs (2 valves per cylinder) - 221437-16

From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most...

Manley Chevy SBC LS-Series NexTek Series High Performance Valve Springs (2 valves per cylinder) - 221436-16

From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most...

Manley Chevy SBC LS-Series NexTek Series High Performance Valve Spring - Single - 221436-1

From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most...

Manley Small Block Chevy LS Series .700in Lift Single NexTek High Perf Valve Springs - 221435-16

From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most...

Manley Ford 4.6L/5.4L DOHC NexTek Series High Performance Valve Springs (4 valves per cylinder) - 221434-32

From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most...

Manley Springs Single Hemi Drag Pak - 221431X-16

From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most...