Manley 221425-16 - Manley NexTek Valve Springs

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Valve Springs, Dual, 1.640 in. Outside Diameter, 604 lbs./in. Rate, 1.150 in. Coil Bind Height, Set of 16
- Application Specific Part: Check Application
Estimated Ship Date: 5/29/2012

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Brand		Manley
Manufacturer's Part Number		221425-16
Part Type		Valve Springs
Product Line		Manley NexTek Valve Springs
Summit Racing Part Number		MAN-221425-16

Number of Springs Per Valve		Dual
Outside Diameter of Outer Spring (in)		1.640 in.
Coil Bind Height (in)		1.150 in.
Damper Spring Included		No
Spring Rate (lbs/in)		604 lbs./in.
Inside Diameter of Outer Spring (in)		1.185 in.
Inside Diameter of Inner Spring (in)		0.860 in.
Valve Spring Style		Standard
Coated		No
Quantity		Sold 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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