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Manley NexTek Valve Spring and Retainer Kits 26361634KS
Part Number: MAN-26361634KS
Manley NexTek Valve Spring and Retainer Kits
Valve Spring and Retainer, NexTek, Dual, 8mm Stem Diameter, 10 Degree Lock, 1.295 in. Spring O.D., Kit
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Estimated Ship Date: Nov 2, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
26361634KS
Part Type:
Product Line:
Summit Racing Part Number:
MAN-26361634KS
UPC:
807298102290
Valve Spring Style:
Standard
Number of Springs Per Valve:
Dual
Maximum Valve Lift (in.):
0.660 in.
Retainers Included:
Yes
Retainer Material:
Steel
Outside Diameter of Outer Spring (in.):
1.295 in.
Coil Bind Height (in.):
1.100 in.
Damper Spring Included:
No
Spring Rate (lbs./in.):
379 lbs./in.
Inside Diameter of Outer Spring (in.):
0.949 in.
Inside Diameter of Inner Spring (in.):
0.676 in.
Locks Included:
Yes
Lock Material:
Steel
Lock Groove Quantity:
1-groove
Lock Style:
10 degree
Valve Stem Seals Included:
Yes
Valve Springs Coated:
No
Valve Stem Diameter (in.):
0.314 in.
Valve Stem Diameter (mm):
8.00mm
Quantity:
Sold as a kit.
Make:
CHEVROLET
Engine Family:
Chevy small block Gen III/IV (LS-based engines)
Installed Height (in.):
1.810 in.
Seat Pressure at Installed Height (lbs.):
155 lbs.
Open Height (in.)(application):
1.150
Open Pressure (lbs.):
405 lbs.
Remanufactured:
No
Manley NexTek Valve Spring and Retainer Kits
Manley NexTek valve spring and retainer kits are designed and manufactured for optimum consistency, run after run, lap after lap. They are manufactured from super clean high-tensile chrome silicon steel that has been shot peened to MIL specs for maximum fatigue life. Proven to have less load loss than many other springs, they exhibit superior fatigue life and enhance valvetrain stability--everything that counts in winning races!
Applications
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