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KIBBLEWHITE

KIBBLEWHITE

KIBBLEWHITE

Kibblewhite Valvetrain Components and Engine Parts at JJ Motorsports

Kibblewhite Precision Machining, commonly known as Kibblewhite, has been a trusted leader in engine components since its establishment in 1936. With a focus on precision and quality, the brand serves the automotive and powersports industries, providing high-performance parts for racers and enthusiasts worldwide. Kibblewhite specializes in valvetrain components such as valves, valve springs, guides, and seals, all crafted to enhance engine performance, durability, and reliability under demanding conditions.

At JJ Motorsports, we offer a comprehensive selection of Kibblewhite products to optimize your engine's performance. For safe compression maximization, consider the Kibblewhite Piston System 80-81200, featuring convex valve reliefs that match valve geometry and convert to Black Diamond technology. Riders seeking superior wear and thermal conductivity can opt for the Kibblewhite Cast Iron Valve Seat - Exhaust - Evolution 10-SC446, compatible with all fuel blends. Enhance your valvetrain with the Kibblewhite Exhaust Valve 20-21063K, CNC machined from EV8 Stainless Steel or Inconel-751 with a hard chrome coating, or the Kibblewhite Intake Valve 20-21061H for similar high-performance benefits. For boosted applications, the Kibblewhite Spring Kit 20-23600 offers increased spring rates and CNC-machined titanium components.

Kibblewhite's products deliver significant advantages, including improved engine efficiency, longevity, and superior wear resistance through high-grade materials and advanced manufacturing. Key features encompass state-of-the-art techniques like Black Diamond valves for extreme durability, high lift compatibility, and designs that minimize breakdowns while extending vehicle life in racing and high-performance scenarios.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • KIBBLEWHITE Valve Guide 20-2064M

    KIBBLEWHITE Valve Guide 20-2064M

    KIBBLEWHITE

    $15.10
    If you're rebuilding a cylinder head, valve guide quality directly impacts compression sealing, oil consumption, and overall engine longevity. The Kibblewhite 20-2064M valve guides deliver precision...
    09262290
    SKU:
    09262290
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    UNITS:
    EACH
    APPLICATION:
    EXHAUST
    INSIDE DIAMETER IMPERIAL:
    0.3745'
    OUTSIDE DIAMETER IMPERIAL:
    0.6290'
    MATERIAL:
    BRONZE
    SIZE IMPERIAL:
    OVERSIZE (+0.004')
    PRODUCT NAME:
    VALVE GUIDE
    RIDING STYLE:
    STREET
    $15.10
    Qty in Cart: 0
    Quantity:
    Price:
    $15.10
    Subtotal:
  • KIBBLEWHITE Valve Guide 20-2066M

    KIBBLEWHITE Valve Guide 20-2066M

    KIBBLEWHITE

    $15.10
    Valve guide selection directly impacts engine longevity and reliability, especially in high-performance or rebuilt applications. KIBBLEWHITE's manganese bronze guides deliver superior heat...
    09262291
    SKU:
    09262291
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    OUTSIDE DIAMETER IMPERIAL:
    0.6310'
    PRODUCT NAME:
    VALVE GUIDE
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    SIZE IMPERIAL:
    OVERSIZE (+0.006')
    APPLICATION:
    EXHAUST
    INSIDE DIAMETER IMPERIAL:
    0.3745'
    MATERIAL:
    BRONZE
    Qty in Cart: 0
    Quantity:
    Price:
    $15.10
    Subtotal:
  • KIBBLEWHITE Valve Guide 20-2132M

    KIBBLEWHITE Valve Guide 20-2132M

    KIBBLEWHITE

    $15.10
    If you're rebuilding a cylinder head, valve guide quality directly impacts compression, longevity, and reliability. KIBBLEWHITE's manganese bronze guides deliver superior heat conductivity to keep...
    09262309
    SKU:
    09262309
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    MATERIAL:
    BRONZE
    OUTSIDE DIAMETER IMPERIAL:
    0.5640'
    APPLICATION:
    EXHAUST
    UNITS:
    EACH
    INSIDE DIAMETER IMPERIAL:
    0.3098'
    PRODUCT NAME:
    VALVE GUIDE
    RIDING STYLE:
    STREET
    SIZE IMPERIAL:
    OVERSIZE (+0.002')
    $15.10
    Qty in Cart: 0
    Quantity:
    Price:
    $15.10
    Subtotal:
  • KIBBLEWHITE Valve Guide - Big Twin 20-2132C

    KIBBLEWHITE Valve Guide - Big Twin 20-2132C

    KIBBLEWHITE

    $8.83
    Valve guides are critical to maintaining precise valve sealing and preventing oil blow-by that compromises engine efficiency. The KIBBLEWHITE 20-2132C is precision-machined from cast iron to...
    09260724
    SKU:
    09260724
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    RIDING STYLE:
    STREET
    INSIDE DIAMETER IMPERIAL:
    0.3085'
    OUTSIDE DIAMETER IMPERIAL:
    0.5640'
    PRODUCT NAME:
    VALVE GUIDE
    APPLICATION:
    EXHAUST
    MATERIAL:
    CAST IRON
    SIZE IMPERIAL:
    OVERSIZE (+0.002')
    UNITS:
    EACH
    $8.83
    Qty in Cart: 0
    Quantity:
    Price:
    $8.83
    Subtotal:
  • KIBBLEWHITE Valve Guide - Big Twin 20-2034C

    KIBBLEWHITE Valve Guide - Big Twin 20-2034C

    KIBBLEWHITE

    $8.83
    Worn valve guides compromise cylinder head integrity and increase oil consumption—a costly problem that cascades into poor compression and engine blow-by. The KIBBLEWHITE Valve Guide 20-2034C...
    09260753
    SKU:
    09260753
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    PRODUCT NAME:
    VALVE GUIDE
    SIZE IMPERIAL:
    OVERSIZE (+0.004')
    UNITS:
    EACH
    APPLICATION:
    EXHAUST
    MATERIAL:
    CAST IRON
    INSIDE DIAMETER IMPERIAL:
    0.3760'
    OUTSIDE DIAMETER IMPERIAL:
    0.5690'
    RIDING STYLE:
    STREET
    $8.83
    Qty in Cart: 0
    Quantity:
    Price:
    $8.83
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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