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Manley 221427-16 NexTek Performance Valve Spring - Set

(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 221437-16 Manley 221434-32

Manufacturer

Picture for manufacturer Manley

Part Number

221427-16
12 reviews
Sale Price

$342.18

In Stock (10+)

delivery box

Usually delivered within 2 days

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Manley 221427-16 valve springs feature advanced NexTek technology engineered for high-performance applications in Chevy LS, Ford Modular, and Chrysler HEMI engines. Manufactured from ultra-clean hi-tensile strength chrome silicon steel alloy, these springs deliver exceptional performance, long-term reliability, and outstanding value.

Specifications:

  • Outer Diameter: 1.020" (top) / 1.125" (bottom)
  • Inner Diameter: 0.642" (top) / 0.748" (bottom)
  • Installed Pressure: 95 lbs @ 1.680"
  • Open Pressure: 240 lbs @ 1.130"
  • Maximum Valve Lift: 0.580"

Advanced Engineering Features:

  • Proprietary multi-step heat-treating process minimizes load loss
  • Shot peening process provides superior fatigue life
  • Computer-aided modeling ensures application-specific optimization
  • Ovate wire construction and conical designs reduce weight
  • Special polishing treatment further enhances fatigue resistance

Manley's NexTek valve springs represent the pinnacle of valve train technology, combining cutting-edge materials science with precision manufacturing to deliver the lightest, highest quality, and most reliable valve springs available for modern performance engines.

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)

0.748 in.

Number of Springs Per Valve

Single

Outside Diameter of Outer Spring (in)

1.125 in.

Quantity

Sold as a set of 16.

Spring Rate (lbs/in)

264 lbs./in.

Valve Spring Style

Standard

here it is: hard to refine components to my particular vehicle without outside reference

Easy to shop. Ty

Great and the tires are nice too!

Description was accurste

Fast and easy.

Everything about the process of ordering these tires was excellent. The price of the tires was better than anywhere else. I received the tires within two days. The tires were excellent quality! I would recommend Autoplicity for your tire needs!

All went well. Price was right.

Easy transaction. Quick shipment.

Best price I could find on the web even after paying for shipping! Shipped in a couple of days and great service!

Fast and easy transaction.

great prices

Great service. Quick shipping!

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