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Manley 221438-16 - Manley NexTek Valve Springs

  • Valve Springs, Single, 1.311 in. Outside Diameter, 353 lbs./in. Rate, 1.100 in. Coil Bind Height, Set of 16
  • Application Specific
  • Estimated Ship Date: 6/4/2012
 
BrandManley
Manufacturer's Part Number221438-16
Part TypeValve Springs
Product LineManley NexTek Valve Springs
Summit Racing Part NumberMAN-221438-16
 
Number of Springs Per ValveSingle
Outside Diameter of Outer Spring (in)1.311 in.
Coil Bind Height (in)1.100 in.
Damper Spring IncludedNo
Spring Rate (lbs/in)353 lbs./in.
Inside Diameter of Outer Spring (in)0.885 in.
Valve Spring StyleConical ovate wire
CoatedNo
QuantitySold as a set of 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.

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