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.
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
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 Steel Retainer CNC machined to exacting tolerances and made of thru-hardened 4140 chromoly. Retainer No. 23621-16 (+.050" Installed Height)
Max Lift: 0.660" - 7° Steel Retainer (+.050") - I.D. Spring Locator (.505") - 7° Machined Valve Lock - Viton Valve Stem Seals
I.D. Valve Spring Locator is CNC machined, heat treated, and black oxide finished. Locator No. 42334-16 (.505" ID)
Viton Valve Stem Seals offer exceptional resistance to heat, chemicals, and oils. Seal No. 24042-16
Note: Max. lift figures above may vary depending upon the cylinder head and installed height.
Manley Chevy LS Valve Spring Kit-Springs/Steel Ret/Locators/Mach. Locks/ Seals
Vlv Spr Kt-Chevy LS - NexTek Sprs/Steel Ret/I.D. Loc./Mchnd Vlv Lcks/Viton Sls
Manley GM LS Series .660in Max Lift Valve Spring and Retainer Kit
Manley LS Valve Spring Kit, KIT-SPRING/RETAINER/LOCATOR/LOCK/SEAL
Engine Valve Spring Kit
LS Valve Spring Kit
Valve Spring Kit
