Engine

  • Valve Spring Kit - Big Twin Valve Spring Kit - Big Twin

    Valve Spring Kit - Big Twin - 59918

    FeaturesOE style replacement kitFeatures dual super clean chrome silicon springs; heat-treated steel base washers.415" liftIncludes steel retainersMade in the U.S.A.Specs Riding Style: Street Spring Lift: 0.600" Application: Exhaust Application: Intake...
    MSRP: $147.47
    $132.72
    Add to Cart
  • Valve Spring Kit - Big Twin

    Valve Spring Kit - Big Twin - 59937

    FeaturesOE style replacement kitFeatures dual super clean chrome silicon springs; heat-treated steel base washers.415" liftIncludes steel retainersMade in the U.S.A.Specs Application: Exhaust Application: Intake Product Name: Spring Kit Spring Lift: 0...
    MSRP: $129.79
    $116.81
    Add to Cart
  • Valve Spring Kit - Big Twin

    Valve Spring Kit - Big Twin - 59939

    FeaturesOE style replacement kitFeatures dual super clean chrome silicon springs; heat-treated steel base washers.415" liftIncludes steel retainersMade in the U.S.A.Specs Application: Intake Application: Exhaust Product Name: Spring Kit Spring Lift: 0...
    MSRP: $126.70
    $114.03
    Add to Cart
  • Valve Spring Kit - Big Twin

    Valve Spring Kit - Big Twin - 59941

    FeaturesOE style replacement kitFeatures dual super clean chrome silicon springs; heat-treated steel base washers.415" liftIncludes steel retainersMade in the U.S.A.Specs Application: Intake Material: Steel Spring Lift: 0.415" Riding Style: Street Spring...
    MSRP: $129.79
    $116.81
    Add to Cart
  • Valve Springs - XL

    Valve Springs

    FeaturesDual super-clean, chrome silicon OEM-style stock replacement springsAccepts stock and aftermarket spring collarsMade in the U.S.A.Specs Application: Intake Material: Chrome-Silicon Spring Seat Pressure: 95 lb Type: Valve Units: Set of 4 Product...
    MSRP: $51.22
    $46.10
    Add to Cart
  • Valve Springs - Big Twin Valve Springs - Big Twin

    Valve Springs - Big Twin

    FeaturesDual super-clean, chrome silicon springs; .600" lift (seat pressure 155-165 lb.)Accepts stock and aftermarket spring collarsMade in the U.S.A.Specs Product Name: Spring Kit Spring Lift: 0,600" Spring Open Pressure: 387 lb Spring Seat Pressure:...
    MSRP: $64.50
    $58.05
    Add to Cart
  • Valve Stem Seals

    Valve Stem Seals

    FeaturesFor use with intake and exhaust valve guidesRetain their ability to seal in adverse conditionsPTFE seals feature a metal jacket with choker springMade in the U.S.A.Specs Application: Exhaust Product Name: Seal Riding Style: Street Application:...
    MSRP: $13.96
    $12.56
    Add to Cart
  • Ring Set

    Wiseco 3880XK - Ring Set

    High-Performance Replacement Ring Set Replacement rings include rings for one piston only Wiseco rings fit only Wiseco pistons.
    $44.95
    Add to Cart