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Manley 221437-16 NexTek Performance Valve Spring

(1997-2004 Ford F-150; 1996-2004 Ford Mustang; 1999-2004 Ford F-250 Super Duty; 1999-2004 Ford F-350 Super Duty; 1997-1999 Ford F-250)

Part of: Manley NexTek Performance Valve Spring

Other options in this family: Manley 221427-16 Manley 221434-32

Manufacturer

Picture for manufacturer Manley

Part Number

221437-16
12 reviews
Sale Price

$365.20

In Stock (10+)

delivery box

Usually delivered within 2 days

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No Hassle Returns

Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Manley 221437-16 NexTek performance valve spring is engineered for high-performance LS, Ford Modular, and Chrysler HEMI applications. Manufactured from super-clean high-tensile strength chrome silicon steel alloy, this spring delivers winning performance, long-term reliability, and exceptional value for demanding engine builds.

Specifications:

  • Outer Diameter: 1.030" (top) / 1.175" (bottom)
  • Inner Diameter: 0.642" (top) / 0.787" (bottom)
  • Installed Pressure: 125 lbs @ 1.680"
  • Open Pressure: 265 lbs @ 1.130"
  • Maximum Valve Lift: 0.580"

Key Features:

  • Proprietary multi-step heat-treating process minimizes load loss
  • Shot peening process for superior fatigue life
  • Computer-aided design optimized for specific applications
  • Ovate wire construction with conical design for reduced weight
  • Special polishing feature improves fatigue resistance

Manley's NexTek valve springs are designed using advanced computer modeling to deliver the lightest, highest quality, and most reliable valve springs available for modern performance engines. The combination of premium materials and advanced manufacturing processes ensures consistent performance under extreme operating conditions.

Products specifications

Fits

1997-2004 Ford F-150; 1996-2004 Ford Mustang; 1999-2004 Ford F-250 Super Duty; 1999-2004 Ford F-350 Super Duty; 1997-1999 Ford F-250

Coated

No

Coil Bind Height (in)

1.080 in.

Damper Spring Included

No

Inside Diameter of Outer Spring (in)

0.787 in.

Number of Springs Per Valve

Single

Outside Diameter of Outer Spring (in)

1.175 in.

Quantity

Sold as a set of 16.

Spring Rate (lbs/in)

255 lbs./in.

Valve Spring Style

Conical ovate wire

Switches are supposed to have internal lights to light face both do not work

Very good Didn't use the part yet

Good website to buy your stuff. And affordable loan and cheap interest

Great service

i

Got what I needed a lot cheaper than other places

. Nn

Great Prices!

Had the product I wanted and at the lowest price. Thank you for the outstanding service!<br><br>-M

Prices were good and the order shipped promptly. The email notice of shipment was a little late. It came after the order had arrived.

Product delivered as expected within 4 days. Lowest price on the web. No complaints.

Nobody else had part in stock. Instant shipping and a good price. Will do business again!

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