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Vehicle Info NeededMANLEYPART NUMBER: 660-221436-1
Polished NexTek H.P. Valve Spring GM LS-series
$1821
Ships on 09/09/2026
Lowest Price GuaranteeGM LS-Series
- NexTek H.P. Valve Spring
- GM LS-series
- 1.295'' O.D.
- 0.676'' I.D.
- 379 lbs./in. Spring Rate
- 155 @ 1.810'' Installed
- 405 @ 1.150'' Open
- 0.660'' Max Valve Lift
- 1.100'' Coil Bind
- Double Spring (No Damper)
- 1/pkg.
GM LS-series high performance hydraulic roller applications
- Type of Spring: Polished Double Coil without Damper
- Color Code: N/A
- Installed Height and Pressure: 1.810' @ 155 lbs./in.
- Open Height and Pressure: 1.150' @ 405 lbs./in.
- Spring Rate: 379 lbs./in.
- O.D. of Outer Spring: 1.295'
- I.D. of Outer Spring: 0.949'
- I.D. of Middle Spring: N/A
- I.D. of Inner Spring: 0.676'
- Coil Bind height: 1.100'
- Weight: 93 grams
- Damper Included: No
Click Here to see 660-221436 Valve Spring Load Chart
Part TypeValve Spring
BrandMANLEY
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part Number221436-1
Package Qty1
Package TypeEA
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