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![Super Finished NexTek H.P. Double Valve Spring Kit [GM Gen V LT4]](https://www.jegs.com/images/mini_750/600/660/660-2638lt4ks.jpg)
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GM Gen V LT4
NexTek H.P. Conical Valve Spring KitGM Gen V LT4 1.311 in. O.D. (Bottom) 0.885 in. I.D. (Bottom) 353 lbs.-in. Spring Rate 150 @ 1.800 / 350 @ 1.150 in. 0.650 in. Max Lift 7 Degree Titanium Retainer Viton Valve Seals
Valve Spring Specs: p/n 660-221438-16
- Type of Spring: Super Finished Single Ovate Wire
- Installed Height and Pressure: 1.800 in. @ 150 lbs.-in.
- Open Height and Pressure: 1.150 in. @ 350 lbs.-in.
- Spring Rate: 353 lbs.-in.
- O.D.: 1.076 in. top, 1.311 in. bottom
- I.D.: 0.650 in. top, 0.885 in. bottom
- Coil Bind height: 1.100 in.
- Weight: 73 grams
Valve Lock Specs: p/n 660-13098-16
- Material: Machined Steel
- Lock Angle: 7 Degree
- Valve Stem Diameter: 8 mm (.3135 in.)
- Installed Height: Standard
- Valve Stem Groove Type: Single Radius Chevy LS
- Weight: 2.6 grams
Valve Stem Seal Specs: p/n 660-24042-16
- Material: Viton
- Valve Stem Diameter: 5/16 in. / 8 mm
- Guide O.D.: 0.500 in.
- Installed Seal O.D.: 0.608 in.
CNC Machined I.D. Spring Locators p/n 42148-8 (Intake), 42161-8 (Exhaust)
7 Degree Titanium Retainer p/n 23601-16
Part TypeValve Spring
BrandMANLEY
Part CategoryPerformance Parts
Part FitmentSemi Universal
Package Qty1
Package TypeEA
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