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GM LS-Series
- NexTek H.P. Valve Spring
- GM LS-series
- 1.311'' O.D.
- 0.650'' I.D.
- 341 lbs./in. Spring Rate
- 150 @ 1.800'' Installed
- 355 @ 1.200'' Open
- 0.600'' Max Valve Lift
- 1.085'' Coil Bind
- Single Conical Ovate Wire
- 1/pkg.
GM LS-series, LT-1 / LT-4 / L-98 high performance hydraulic roller applications
- Type of Spring: Single Conical Ovate Wire
- Color Code: N/A
- Installed Height and Pressure: 1.800' @ 150 lbs./in.
- Open Height and Pressure: 1.200' @ 355 lbs./in.
- Spring Rate: 341 lbs./in.
- O.D. of Outer Spring: 1.076' Top / 1.311' Bottom
- I.D. of Outer Spring: 0.650' Top / 0.885' Bottom
- I.D. of Middle Spring: N/A
- I.D. of Inner Spring: N/A
- Coil Bind height: 1.085'
- Weight: 79 grams
- Damper Included: No
Click Here to see 660-221428 Valve Spring Load Chart
Part TypeValve Spring
BrandMANLEY
Package Height2.6
Package Width4.1
Package Length6.0
Weight0.2 PG
Part CategoryPerformance Parts
Installed Height (In)1.800 in.
Open Height (In)1.200 in.
QuantitySold individually
Seat Pressure At Installed Height (Lbs)150 lbs.
Part FitmentSemi Universal
Spring Rate (Lbs/In)341 lbs./in.
Coil Bind Height (In)1.085 in.
Valve Spring StyleConical ovate wire
Open Pressure (Lbs)355 lbs.
Vendor Part Number221428-1
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
