Super Finished NexTek H.P. Valve Springs 5.7/6.1L HEMI

Name: Super Finished NexTek H.P. Valve Springs 5.7/6.1L HEMI
Brand: MANLEY
SKU: 660-221431-16
Price: 446.28 USD
Availability: InStock

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Chrysler 5.7L/6.1L HEMI

5.7/6.1L HEMI
1.311'' O.D.
0.650'' I.D.
353 lbs./in. Spring Rate
145 @ 1.811'' Installed
370 @ 1.161'' Open
0.650'' Max Valve Lift
1.100'' Coil Bind
Single Conical Ovate Wire
16/pkg.

Chrysler 5.7L/6.1L HEMI high performance hydraulic roller applications. *Note: These Chrysler Hemi springs come with shims which are ONLY needed for 6.1L applications on the intake side in order to achieve the correct installed height. Each set also includes a set of piloting rings that install over the factory 'Top Hat' integral valve seal to properly locate the I.D. of the spring on early 5.7L (thru 2008) and 6.1L applications. P/N 221431X-16 which does not include any shims or piloting rings is also available for the Hemi Drag Pak engines.
Type of Spring: Super Finished Single Conical Ovate Wire
Color Code: N/A
Installed Height and Pressure: 1.811' @ 145 lbs./in.
Open Height and Pressure: 1.161' @ 370 lbs./in.
Spring Rate: 353 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: 1.100'
Weight: 72 grams
Damper Included: No

Click Here to see 660-221431 Valve Spring Load Chart