Manley NexTek Dual Valve Spring 1.500 in OD 16 pc P/N 221420-16

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3.90 (in)
3.80 (in)
15.40 (in)


In 2002 Manley Performance introduced the NexTek® (Next Technology) line of valve springs; developed to satisfy the needs of top level engine builders demanding the absolute highest quality valve springs. This new spring program originated with only a very small handful of part numbers; specifically designed for the roller cam “BGN” market and high-end Drag Racing arena (Pro Stock/Comp). Today, we offer our customers an expansive array of successful part numbers for a wide variety of drag, oval, marine and street/strip applications. Manley Nextek® springs can be found in drag race applications ranging from Bracket to Top Fuel, in oval track engines across the country such as DLM and Sprint cars, as well as in late model Chevy LS, Chrysler 5.7L/6.1L Hemi and Ford Modular vehicles on the street and strip. Camshaft designers have not stood still and are constantly pushing the envelope with more aggressive lobes. Engine speeds continue to increase. These factors motivate our valve spring designers to engineer product solutions
Valve Spring - NexTek - Dual Spring - 780 lb/in Spring Rate - 1.130 in Coil Bind - 1.500 in OD - Set of 16

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Warranty Information

Full manufacturer's warranty
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