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Vehicle Info NeededMANLEYPART NUMBER: 660-221425-1
NexTek Drag Race Valve Spring 1.640" O.D.
$2561
Ships on 09/09/2026
Lowest Price Guarantee1.640'' O.D. Double Valve Springs
- NexTek Drag Race Valve Spring
- 1.640'' O.D.
- 0.860'' I.D.
- 604 lbs./in. Spring Rate
- 280 @ 2.100'' Installed
- 795 @ 1.250'' Open
- 0.900'' Max Valve Lift
- 1.150'' Coil Bind
- Double Spring (No Damper)
- 1/pkg.
- Type of Spring: Double without Damper
- Color Code: Green Stripe
- Installed Height and Pressure: 2.100' @ 280 lbs./in.
- Open Height and Pressure: 1.250' @ 795 lbs./in.
- Spring Rate: 604 lbs./in.
- O.D. of Outer Spring: 1.640'
- I.D. of Outer Spring: 1.185'
- I.D. of Middle Spring: N/A
- I.D. of Inner Spring: 0.860'
- Coil Bind height: 1.150'
- Weight: 160 grams
- Damper Included: No
Click Here to see 660-221425 Valve Spring Load Chart
Part TypeValve Spring
BrandMANLEY
Package Height1.7
Package Width2.0
Package Length2.8
Weight0.35 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part Number221425-1
Package Qty1
Package TypeEA
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