Manley GM LS Series .660in Max Lift Valve Spring and Retainer Kit

SKU: MAN26362334KS

Valve Springs

MAN Valve Spring Kits...

Manley GM LS Series .660in Max Lift Valve Spring and Retainer Kit

Manley Performance

Manley GM LS Series .660in Max Lift Valve Spring and Retainer Kit

SKU: MAN26362334KS

Valve Springs

MAN Valve Spring Kits...

IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.

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Description

Manley Performance LS & LT NexTek® valve spring kits take the guess work out of making your valvetrain race-ready. Engineered for maximum durability, stability, and precision in high-performance and racing applications, these chrome-silicon alloy springs provide exceptional fatigue resistance and high-tensile strength, ensuring consistent valve control at extreme RPMs. Save time and money with these all-inclusive kits, featuring premium springs, retainers, I.D. locators, locks, and Viton? seals.

Part Type

Engine Valve Spring Kit

Data: v4.2 - Upd: 2026-10-13 17:09:12

Features

7 Machined Valve Locks use the highest quality steel alloy and are heat treated and black oxide finished. For 8mm (.3135") valve stem. Lock No. 13098-16
7 Titanium Retainer CAD designed for ultimate reduction in mass without sacrificing strength. Retainer No. 23623-16 (Std. Installed Height)
I.D. Valve Spring Locator is CNC machined, heat treated, and black oxide finished. Locator No. 42334-16 (.505" ID)
Manley LS and LT Valve Spring Kits provide a complete, engineered solution, ensuring seamless compatibility for higher-lift camshafts and eliminating concerns with mismatched components.
NexTek Valve Springs are manufactured from "super clean" Hi-Tensile Chrome Silicon steel and shot-peened to MIL spec for maximum fatigue life. Spring No. 221436-16
Note: Max. lift figures above may vary depending upon the cylinder head and installed height.
Viton Valve Stem Seals offer exceptional resistance to heat, chemicals, and oils. Seal No. 24042-16

Specifications

Product Attributes - Brand: Manley
Product Attributes - Manufacturer's Part Number: 26362334KS
Product Attributes - Part Type: Valve Springs
Product Attributes - Product Line: Manley NexTek Valve Spring and Retainer Kits
Product Attributes - UPC: 807298102337
Product Attributes - Valve Spring Style: Standard
Product Attributes - Number of Springs Per Valve: Dual
Product Attributes - Maximum Valve Lift (in.): 0.660 in.
Product Attributes - Retainers Included: Yes
Product Attributes - Retainer Material: Titanium
Product Attributes - Outside Diameter of Outer Spring (in.): 1.295 in.
Product Attributes - Coil Bind Height (in.): 1.100 in.
Product Attributes - Damper Spring Included: No
Product Attributes - Spring Rate (lbs/in.): 379 lbs./in.
Product Attributes - Inside Diameter of Outer Spring (in.): 0.949 in.
Product Attributes - Inside Diameter of Inner Spring (in.): 0.676 in.
Product Attributes - Locks Included: Yes
Product Attributes - Lock Material: Titanium
Product Attributes - Lock Groove Quantity: 2-groove
Product Attributes - Lock Style: 7 degree
Product Attributes - Valve Stem Seals Included: Yes
Product Attributes - Valve Springs Coated: No
Product Attributes - Valve Stem Diameter (mm): 8.00mm
Product Attributes - Remanufactured: No
Product Attributes - Quantity: Sold as a kit.

Reference Information

Brand Name/s	Manley Performance
StreetFX SKU	man26362334KS
SFX Item ID	4059958
Supplier Item Code	4059958
Manufacturer SKU	26362334KS
Manufacturer UPC	807298102337
Alternative References	.660in