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K-Motion Premium Valve Springs


K-Motion
K-Motion Premium Valve Springs

Product images may differ from actual product appearance.

The Overwhelming Choice of Racing Winners!

Made from the very best Silicon or H-11 tool steel wire and heat treated and/or stress relieved to the correct Rockwell hardness per application. Every spring is visually checked, then radius ground and depointed for longer spring life. All valve springs are individually pressure checked and boxed with no more than 5 pounds variation per set.



17 Products
Double H-11 Valve Springs with Damper

571-K-1000
1.625'' Dia. Double H-11 Valve Springs with Damper,
  • Seat Load: 240lbs @ 1.900''
  • Open Load: 740lbs @ 1.200''
  • Coil Bind: 1.090''
  • Max Lift: .750''
    Set of 16
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  • $284.99
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    571-K-1000-1
    1.625'' Dia. Double H-11 Valve Springs with Damper,
  • Seat Load: 240lbs @ 1.900''
  • Open Load: 740lbs @ 1.200''
  • Coil Bind: 1.090''
  • Max Lift: .750''
    Each
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  • $34.99
    Order Today Ships 04/28/14

    571-K-1000H
    1.625'' Dia. Double H-11 Valve Springs with Damper,
  • Seat Load: 265lbs @ 2.000''
  • Open Load: 825lbs @ 1.200''
  • Coil Bind: 1.090''
  • Max Lift: .850''
    Set of 16
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  • $284.99
    Order Today Ships 04/25/14

    571-K-1000H-1
    1.625'' Dia. Double H-11 Valve Springs with Damper,
  • Seat Load: 265lbs @ 2.000''
  • Open Load: 825lbs @ 1.200''
  • Coil Bind: 1.090''
  • Max Lift: .850''
    Each
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  • $24.99
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    571-K-1200
    1.625'' Dia. Double H-11 Valve Springs with Damper
  • Seat Load: 260lbs @ 2.000''
  • Open Load: 880lbs @ 1.250''
  • Coil Bind: 1.150''
  • Max Lift: .831''
    Set of 16
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  • $319.99
    Order Today Ships 04/28/14

    571-K-900
    1.550'' Dia. Double H-11 Valve Springs with Damper,
  • Seat Load: 240lbs @ 1.850''
  • Open Load: 645lbs @ 1.150''
  • Coil Bind: 1.090''
  • Max Lift: .700''
    Set of 16
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  • $296.99
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    571-K-950
    1.550'' Dia. Double H-11 Valve Springs with Damper,
  • Seat Load: 245lbs @ 2.000''
  • Open Load: 690lbs @ 1.300''
  • Coil Bind: 1.150''
  • Max Lift: .750''
    Set of 16
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    Fits Applications
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  • $284.99
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    571-K-950-1
    1.550'' Dia. Double H-11 Valve Springs with Damper,
  • Seat Load: 245lbs @ 2.000''
  • Open Load: 690lbs @ 1.300''
  • Coil Bind: 1.150''
  • Max Lift: .750''
    Each
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  • $37.99
    Order Today Ships 04/28/14
    Double M-3000 Valve Springs with Damper

    571-K-975
    1.550'' Dia. Double M-3000 Valve Spring with Damper,
  • Seat Load: 245lbs @ 2.000''
  • Seat Load: 600lbs @ 1.300''
  • Coil Bind: 1.200''
  • Max Lift: .700''
    Set of 16

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  • $444.99
    Order Today Ships 04/28/14

    571-K-975H
    1.550'' Dia. Double M-3000 Valve Springs,
  • Seat Load: 275lbs @ 2.000''
  • Open Load: 620lbs @ 1.300''
  • Coil Bind: 1.200''
  • Max Lift: .750''
    Set of 16

    More info on K-Motion K-975H
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  • $444.99
    Order Today Ships 04/28/14
    Double Silicon Valve Springs with Damper

    571-K-1100
    1.550'' Dia. Double Silicon Valve Springs with Damper,
  • Seat Load: 230lbs @ 1.900''
  • Open Load: 555lbs @ 1.250''
  • Coil Bind: 1.150''
  • Max Lift: .640''
    Set of 16
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  • $141.99
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    571-K-800
    1.460'' Dia. Silicon Double Valve Spring with Damper,
  • Seat Load: 165lbs @ 1.850''
  • Open Load: 495lbs @ 1.150''
  • Coil Bind: 1.085''
  • Max Lift: .700''
    Set of 16
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  • $104.99
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    571-K-850
    1.550'' Dia. Double Silicon Valve Springs with Damper,
  • Seat Load: 135lbs @ 1.900''
  • Open Load: 419lbs @ 1.250''
  • Coil Bind: 1.090''
  • Max Lift: .630''
    Set of 16
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  • $189.99
    Order Today Ships 04/28/14
    Single H-11 Valve Springs

    571-K-750
    1.265'' Dia. Single H-11 Valve Springs,
  • Seat Load: 130lbs @ 1.700''
  • Open Load: 395lbs @ 1.150''
  • Coil Bind: 1.050''
  • Max Lift: .610''
    Set of 16
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    Fits Applications
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  • $141.99
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    Single Silicon Valve Springs

    571-K-700
    1.265'' Dia. Single Silicon Valve Springs,
  • Seat Load: 120lbs @ 1.700''
  • Open Load: 375lbs @ 1.150''
  • Coil Bind: 1.050''
  • Max Lift: .500''
    Set of 16
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    Fits Applications
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  • $53.99
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    571-K-700-1
    1.265'' Dia. Single Silicon Valve Spring,
  • Seat Load: 120lbs @ 1.700''
  • Open Load: 375lbs @ 1.150''
  • Coil Bind: 1.050''
  • Max Lift: .500''
    Each
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  • $11.99
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    Triple H-11 Valve Springs

    571-K-1700
    1.650'' Dia. Triple H-11 Valve Springs
  • Seat Load: 360lbs @ 2.000''
  • Open Load: 880lbs @ 1.250''
  • Coil Bind: 1.150''
  • Max Lift: .840''
    Set of 16
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  • $339.99
    Order Today Ships 04/28/14

    17 Products