Manley NexTek Valve Springs

5.0 out of 5 stars 4 Customer Reviews

These Manley NexTek valve springs are better-designed valve springs using state-of-the-art machinery for purpose-built racing engines. They're manufactured from sup

These Manley NexTek valve springs are better-designed valve springs using state-of-the-art machinery for purpose-built racing engines. They're manufactured from super-clean, high-tensile chrome silicon steel and are shot-peened to MIL specs for maximum fatigue life. They feature a proprietary, multi-step heat-treating that minimizes load loss and have computer-aided modeling to minimize valve bounce and valve gear separation. The Manley NexTek valve springs are smaller diameter and lightweight, allowing engines to rev higher faster. They have an extended tip thickness designed to eliminate overload breakage, and thei

Showing In Stock Items. Show All 13 Items.

Results 1 - 9 of 9

Manley NexTek Valve Springs 221448-16

Valve Springs, Triple, 1.677 in. Outside Diameter, 733 lbs./in. Rate, 1.142 in. Coil Bind Height, Set of 16

Part Number: MAN-221448-16

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Manley NexTek Valve Springs 221447-16

Valve Springs, Triple, 1.677 in. Outside Diameter, 746 lbs./in. Rate, 1.160 in. Coil Bind Height, Set of 16

Part Number: MAN-221447-16

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Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Manley NexTek Valve Springs 221422-16

Valve Spring, Nex Tek, Dual, 1.335 in. Outside Diameter, 780 lbs/in., Set of 16

Part Number: MAN-221422-16

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Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Manley NexTek Valve Springs 221434-32

Valve Springs, Single, 1.126 in. Outside Diameter, 330 lbs./in. Rate, 0.880 in. Coil Bind Height, Set of 32

Part Number: MAN-221434-32

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Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Manley NexTek Valve Springs 221442-16

Valve Springs, Dual, 1.560 in. Outside Diameter, 533 lbs./in. Rate, 1.200 in. Coil Bind Height, Set of 16

Part Number: MAN-221442-16

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Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Manley NexTek Valve Springs 221445P-16

Valve Springs, Dual, 1.620 in. Outside Diameter, 500 lbs./in. Rate, 1.200 in. Coil Bind Height, Set of 16

Part Number: MAN-221445P-16

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Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Manley NexTek Valve Springs 221444-16

Valve Springs, Dual, 1.610 in. Outside Diameter, 546 lbs./in. Rate, 1.220 in. Coil Bind Height, Set of 16

Part Number: MAN-221444-16

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Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Manley NexTek Valve Springs 221443-16

Valve Springs, Dual, 1.580 in. Outside Diameter, 535 lbs./in. Rate, 1.170 in. Coil Bind Height, Set of 16

Part Number: MAN-221443-16

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Manley NexTek Valve Springs 221441P-16

Valve Springs, Dual, 1.570 in. Outside Diameter, 575 lbs./in. Rate, 1.215 in. Coil Bind Height, Set of 16

Part Number: MAN-221441P-16

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

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