Max Lift: 0.560" (LS) / 0.660" (LT1) - 7? Titanium Retainer (Std.) - I.D. Spring Locator (.505") - 7° Machined Valve Lock - Viton Valve Stem Seals
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 Titanium Retainer CAD designed for ultimate reduction in mass without sacrificing strength. Retainer No. 23617-16 (Std. Installed Height)
  • I.D. Valve Spring Locator is CNC machined, heat treated, and black oxide finished. Locator No. 42334-16 (.505" ID)
  • 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. 13094-16 (-.050" Installed Height)
  • 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.

Information:

Manley LS/LT1 Valve Spring Kit, KIT-SPRING/RETAINER/LOCATOR/LOCK/SEAL
Attributes
California Proposition 65 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Category Hierarchy Valve Springs & Kits, Valve Springs & Kits>LS & LT Valve Spring Kits, Valve Springs & Kits>LS & LT Valve Spring Kits
Country of Origin (Primary) US
Emission Code Off Road
Engine LS, LS
Engine - Web LS
Engine Detail - Web LS
Engine Family LS
Engine Type ICE, ICE
Finish Fully Polished, Fully Polished
Hazardous Material Code N
Industry Automotive, Automotive
Installed Pressure and Height 155 @ 1.810, 155 @ 1.810
Life Cycle Status Code Available to Order
Make Chevrolet, Chevrolet
Make - Web Chevrolet
Open Pressure and Height 405 @ 1.150, 405 @ 1.150
Out of Stock Message Call for Availability, Call for Availability
Product Market Domestic, Domestic
Product Type Valve Spring Kit, Valve Spring Kit
SDR Required Flag N
Title - Web Manley Valve Spring Kit, KIT-SPRING/RETAINER/LOCATOR/LOCK/SEAL, Manley Valve Spring Kit - Chevrolet LS/LT1 - NexTek? Springs/Steel Retainers/I.D. Locators/Machined Valve Locks/Viton Seals
Valve Lift - Maximum .560 / .660, .560 / .660
Valve Lock Angle 7, 7
Valve Spring Coil Bind Height 1.100, 1.100
Valve Spring Inner Diameter .676, .676
Valve Spring Outer Diameter 1.295, 1.295
Valve Spring Quantity 16, 16
Valve Spring Rate 379, 379
Valve Spring Series NexTek?, NexTek?
Valve Spring Type Double Without Damper, Double Without Damper
Warranty Time 30
Weight 93, 93
GTIN 00807298105123