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 their tightly controlled open-end flatness reduces valve stem side loading. Valve Springs, Triple, 1.677 in. Outside Diameter, 733 lbs./in. Rate, 1.142 in. Coil Bind
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Product Description

Manley NexTek Series 1.677" Drag Triple Valve Springs Set of 16 (221448-16)

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 their tightly controlled open-end flatness reduces valve stem side loading.

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

Features:

Sportsman and Bracket Classes

Unequalled performance

All springs are triple

Better valve train stability and component life

Ideally suited for Sportsman Drag Racing applications Maximum Valve Lift: .900 O.D. : 1.677 I.D : .635 Installed Open / Pressure: 350@2.100 / 1010@1.200 Rate: 733 Coil bind: 1.142 Component Code: B

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