Manley 221431-16 NexTek Performance Street/Strip Valve Springs

Chrysler Hemi 5.7L/6.1L, Super Finish, Single Spring, Conical Ovate Wire, 1.076" Top 1.311" Bottom Outer Diameter, .650" Top .885" Bottom Inner Diameter, Seat Pressure 146 @ 1.811, Open Pressure 371 @ 1.161, Coil Bind 1.100", Set of 16

$446.28

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⚠ PROP 65 WARNING

⚠ WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer. Please contact us to obtain a list of harmful chemicals. For more information, go to www.P65Warnings.ca.gov.

Description

Manley NexTek Performance Street/Strip Valve Springs have a state-of-the-art winding, thermal treatment and finishing practices that cannot be duplicated. They are made from specially processed premium-grade chrome silicon that is virtually free of impurities or surface irregularities. NexTek Series valve springs have been tested by engine builders and are confirmed to be the best performing valve springs on the market today.
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 ID 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.

Specifications

More Information
CNC Part Number	MAN-221431-16
Price	$446.28
Manufacturer's Part Number	221431-16
Brands	Manley
Part Types	Engine Valve Spring, Hardware
Departments	Parts
Coil Bind	1.100
Number of Springs	Single
Outer Spring Outer Diameter	1.311
Spring Rate (LBS./IN.)	353
Custom Notices	⚠ PROP 65 WARNING