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SPRING-1.101 SINGLE
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Estimated Ship Date from Texas: Today Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
221433-1
Part Type:
Product Line:
Summit Racing Part Number:
MAN-221433-1
Item Number:
3355685
UPC:
807298069272
Valve Spring Style:
Conical ovate wire
Number of Springs Per Valve:
Single
Maximum Valve Lift (in.):
0.580 in.
Retainers Included:
No
Outside Diameter of Outer Spring (in.):
1.013 in./1.101 in.
Coil Bind Height (in.):
1.020 in.
Damper Spring Included:
No
Spring Rate (lbs./in.):
258 lbs./in.
Inside Diameter of Outer Spring (in.):
0.650 in./0.738 in.
Locks Included:
No
Valve Stem Seals Included:
No
Valve Springs Coated:
No
Remanufactured:
No
Quantity:
Sold individually.
Make:
FORD
Engine Family:
FORD V8 MODULAR GAS
Installed Height (in.):
1.670 in.
Seat Pressure at Installed Height (lbs.):
110 lbs.
Open Height (in.)(application):
1.090
Open Pressure (lbs.):
260 lbs.
Application Notes:
Fits Ford Modular 4.6L and 5.4L engines.
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.
Applications
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Some parts are not legal for use in California or other states with similar laws / regulations
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