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Valve Springs, Single, 1.311 in. Outside Diameter, 353 lbs./in. Rate, 1.100 in. Coil Bind Height, Each
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Estimated Ship Date from OH, TX: Today Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
221438-1
Part Type:
Product Line:
Summit Racing Part Number:
MAN-221438-1
UPC:
807298016566
Valve Spring Style:
Beehive
Number of Springs Per Valve:
Single
Maximum Valve Lift (in.):
0.600 in.
Retainers Included:
No
Outside Diameter of Outer Spring (in.):
1.311 in.
Coil Bind Height (in.):
1.100 in.
Damper Spring Included:
No
Spring Rate (lbs./in.):
353 lbs./in.
Inside Diameter of Outer Spring (in.):
0.885 in.
Locks Included:
No
Valve Stem Seals Included:
No
Valve Springs Coated:
No
Quantity:
Sold individually.
Make:
CHEVROLET
Engine Family:
Chevy small block Gen III/IV (LS-based engines)
Installed Height (in.):
1.800 in.
Seat Pressure at Installed Height (lbs.):
150 lbs.
Open Height (in.)(application):
1.150
Open Pressure (lbs.):
375 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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