Max Lift: 0.650" - 7° Titanium Retainer (+.095) - I.D. Spring Locators - 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 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. 221438-16
- 7 Titanium Retainer CAD designed for ultimate reduction in mass without sacrificing strength. Retainer No. 23601-16 (+.095" Installed Height)
- I.D. Valve Spring Locators are CNC machined, heat treated, and black oxide finished. Locator No. 42148-8 (Int.) / 42161-8 (Exh.)
- 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
- 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 LT4 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 | LT4, LT4 |
| Engine - Web | LT4 |
| Engine Detail - Web | LT4 |
| Engine Family | LT4 |
| Engine Type | ICE, ICE |
| Finish | Super Finished, Super Finished |
| Hazardous Material Code | N |
| Industry | Automotive, Automotive |
| Installed Pressure and Height | 150 @ 1.800, 150 @ 1.800 |
| Life Cycle Status Code | Available to Order |
| Make | Chevrolet, Chevrolet |
| Make - Web | Chevrolet |
| Open Pressure and Height | 380 @ 1.150, 380 @ 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 LT4 - NexTek? Springs/Steel Retainers/I.D. Locators/Machined Valve Locks/Viton Seals |
| Valve Lift - Maximum | .650, .650 |
| Valve Lock Angle | 7, 7 |
| Valve Spring Coil Bind Height | 1.100, 1.100 |
| Valve Spring Inner Diameter - Bottom | .885, .885 |
| Valve Spring Inner Diameter - Top | .650, .650 |
| Valve Spring Outer Diameter - Bottom | 1.311, 1.311 |
| Valve Spring Outer Diameter - Top | 1.076, 1.076 |
| Valve Spring Quantity | 16, 16 |
| Valve Spring Rate | 353, 353 |
| Valve Spring Series | NexTek?, NexTek? |
| Valve Spring Type | Single Conical Ovate Wire, Single Conical Ovate Wire |
| Warranty Time | 30 |
| Weight | 73, 73 |
| GTIN | 00807298111797 |