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Manley 221418-1
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Manley Super Finished NexTek H.P. Valve Spring 5.0L Coyote DOHC 4V

660-221418-1

Ships directly from the manufacturer
Save $10 off $199, $45 off $499, $100 off $999. Promo Code: FALLFUN exclusions apply

$27.99
Manley Super Finished NexTek H.P. Valve Spring 5.0L Coyote DOHC 4V $27.99
Out of stock
QTY
NexTek H.P. Valve Spring
  • 5.0L Coyote DOHC 4V
  • 1.014'' O.D.
  • 0.533'' I.D.
  • 236 lbs./in. Spring Rate
  • 90 @ 1.570'' Installed
  • 225 @ 1.000'' Open
  • 0.570'' Max Valve Lift
  • 0.904'' Coil Bind
  • Single Conical Ovate Wire
  • 1/pkg.
  • Manley 221418-1 Details

    Ford 5.0L Coyote

    Ford 5.0L Coyote DOHC 4-Valve stock diameter hydraulic roller applications.

  • Type of Spring: Super Finished Single Conical Ovate Wire
  • Color Code: N/A
  • Installed Height and Pressure: 1.570'' @ 90 lbs./in.
  • Open Height and Pressure: 1.000'' @ 225 lbs./in.
  • Spring Rate: 236 lbs./in.
  • O.D. of Outer Spring: 0.841'' Top / 1.014'' Bottom
  • I.D. of Outer Spring: 0.533'' Top / 0.706'' Bottom
  • I.D. of Middle Spring: N/A
  • I.D. of Inner Spring: N/A
  • Coil Bind height: 0.904''
  • Weight: 36 grams
  • Damper Included: No

    Click Here to see 660-221418 Valve Spring Load Chart

  • Specifications:

    Open Height (in)
    1.000 in.
    Seat Pressure at Installed Height (lbs)
    90 lbs.
    Open Pressure (lbs)
    225 lbs.
    Coil Bind Height (in)
    0.904 in.
    Installed Height (in)
    1.570 in.
    Spring Rate (lbs/in)
    236 lbs./in.
    Quantity
    Sold individually
    Valve Spring Style
    Conical ovate wire
    Shipping Weight:
    1.01
    Package Height:
    19.9
    Package Depth:
    1.3
    Package Width:
    9.3

    Better By Design

    Manley NexTek (Next Generation) Valve Springs were developed over a decade ago and still offer unequaled performance. These durable springs are able to satisfy the demands of top-level engine builders who need the absolute highest-quality valve springs available. Manley Nextek springs can be found in drag race applications ranging from Bracket racers to Top Fuel, oval track engines across the country, and muscle cars on the street and strip.

    Features:

    • Manufactured from HiTensile Chrome Silicon steel
    • Shotpeened to MIL Specs for maximum fatigue life
    • Proprietary multi-step heat treating minimizes load loss
    • Tightly controlled open end flatness reduces valve stem side loading
    • Tip thickness designed to eliminate overload breakage
    • Specially processed premium-grade chrome silicon that is virtually free of impurities or surface irregularities
    • Available in Polished and Super Finished versions to reduce friction, improve fatigue life and minimize load loss
    • Super Finished is a multi-step surface enhancement that significantly improves fatigue strength

      Click Here to see Valve Springs Load Chart

    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

    Tools:

    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.