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Manley NexTek Drag Race Springs & Lightweight Titanium Retainer Kit 1.640" O.D. Springs, p/n 660-221424-16

Manley 261424L
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Manley NexTek Drag Race Springs & Lightweight Titanium Retainer Kit 1.640" O.D. Springs, p/n 660-221424-16 $497.99
NexTek Drag Race Springs & Lightweight Titanium Retainer Kit
  • 1.640'' O.D. Springs, p/n 660-221424-16
  • 10-Degree Lightweight Titanium Retainer, p/n 660-23540-16
  • 16/pkg.

  • Manley 261424L Details

    1.640'' O.D. Double Valve Springs

    Includes Manley 10° Lightweight Titanium Retainers (part number, 660-23540-16).

  • Type of Spring: Double without Damper
  • Color Code: Blue Stripe
  • Installed Height and Pressure: 2.000'' @ 250 lbs./in.
  • Open Height and Pressure: 1.150'' @ 800 lbs./in.
  • Spring Rate: 647 lbs./in.
  • O.D. of Outer Spring: 1.640''
  • I.D. of Outer Spring: 1.185''
  • I.D. of Middle Spring: N/A
  • I.D. of Inner Spring: 0.860''
  • Coil Bind height: 1.070''
  • Weight: 149 grams
  • Damper Included: No

    Click Here to see 660-221424 Valve Spring Load Chart

  • Specifications:

    Manufacturer's Part Number:

    NexTek Valve Springs...Better By Design!

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

  • Higher natural frequency provides improved valvetrain control and higher RPM potential
  • All springs are triple design springs except for 660-221424, 660-221425 & 660-221454 which are double design without damper
  • Extensively tested on the Spintron, dyno and race track (including blown nitro engines) and proven highly effective
  • Smaller diameter, lightweight dual design allows engine to rev higher with improved valve train control
  • Better valvetrain stability and component life
  • Ultra clean, high tensile strength chrome silicon steel
  • Polish Finish surface reduces friction, improves fatigue life and minimize load loss.
  • Ideal loads for multiple applications with minimal load loss

    Click Here to see Valve Springs Load Chart

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