Speed And Science Ltd.

Speed And Science Ltd.

Performance parts for Harley-Davidson (TM) motorcycles

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harley

Showing all 17 results

  • shovelhead valvetrain kit

    SHOVELHEAD VALVETRAIN KIT

    Rated 4.00 out of 5
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  • TwinCam valvetrain kit

    TWINCAM (OEM SIZE VALVES) VALVETRAIN KIT

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  • TwinCam valvetrain kit

    TWINCAM MIT (OVERSIZED) VALVETRAIN KIT

    Add to cart
  • Shovel Rocker Hardware Kit

    SHOVELHEAD ROCKER BOX FASTENER KIT

    Rated 5.00 out of 5
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  • SHOVELHEAD HI-LIFT VALVE SPRINGS

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  • M8 flow bench valve tool

    MILWAUKEE 8 Flow Bench Valve Opener

    Rated 5.00 out of 5
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  • 2″ Stroke Dial Indicator

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  • Rocker Box repair kit

    SHOVELHEAD ROCKER BOX REPAIR KIT

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  • Intake Seal Kit

    SHOVELHEAD INTAKE MANIFOLD SEAL KIT for single intake system

    Add to cart
  • Dual Intake Seal Kit

    SHOVELHEAD INTAKE MANIFOLD SEAL KIT for dual intake system

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  • Sale! Shovelhead Billet Aluminum Timing Cover 02

    TIMING / POINTS COVER – SHOVELHEAD

    Add to cart
  • Sale! Timing Cover Evolution motorcycle

    TIMING COVER – EVOLUTION (horizontal holes)

    Add to cart
  • Sale! Timing Cover Evolution motorcycle

    TIMING COVER – EVOLUTION (vertical holes)

    Add to cart
  • Sale!

    TIMING COVER – TWIN CAM

    Rated 5.00 out of 5
    Add to cart
  • Harley-Davidson M8 Timing Cover

    TIMING COVER – MILWAUKEE 8

    Rated 5.00 out of 5
    Add to cart
  • Sale! Timing Cover BUELL motorcycle

    TIMING COVER – BUELL (vertical holes)

    Add to cart
  • custom timing cover shovel evolution 01

    CUSTOM LOGO TIMING COVER

    Rated 5.00 out of 5
    Add to cart

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