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Valve Springs, Dual, 1.640 in. Outside Diameter, 647 lbs./in. Rate, 1.070 in. Coil Bind Height, Set of 16
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Overview
Brand:
Manufacturer's Part Number:
221424-16
Part Type:
Product Line:
Summit Racing Part Number:
MAN-221424-16
UPC:
807298023601
Valve Spring Style:
Standard
Number of Springs Per Valve:
Dual
Maximum Valve Lift (in.):
0.880 in.
Retainers Included:
No
Outside Diameter of Outer Spring (in.):
1.640 in.
Coil Bind Height (in.):
1.070 in.
Damper Spring Included:
No
Spring Rate (lbs./in.):
647 lbs./in.
Inside Diameter of Outer Spring (in.):
1.185 in.
Inside Diameter of Inner Spring (in.):
0.860 in.
Locks Included:
No
Valve Stem Seals Included:
No
Valve Springs Coated:
No
Quantity:
Sold as a set of 16.
Installed Height (in.):
2.000 in.
Seat Pressure at Installed Height (lbs.):
250 lbs.
Open Height (in.)(application):
1.150
Open Pressure (lbs.):
800 lbs.
Remanufactured:
No
Manley NexTek Valve Springs
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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Some parts are not legal for use in California or other states with similar laws / regulations
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