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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 Cast Iron Valve Guide 20-2064C

    KIBBLEWHITE Cast Iron Valve Guide 20-2064C

    KIBBLEWHITE

    $8.83
    Precision-machined from cast iron, Compatible with no-lead fuel and accept any type of valve-stem material, Accept special valve guide seals (sold separately), Made in the U.S.A.
    09261996
    SKU:
    09261996
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    APPLICATION:
    EXHAUST
    UNITS:
    EACH
    PRODUCT NAME:
    VALVE GUIDE
    INSIDE DIAMETER IMPERIAL:
    0.3745'
    MATERIAL:
    CAST IRON
    OUTSIDE DIAMETER IMPERIAL:
    0.6290'
    RIDING STYLE:
    STREET
    Qty in Cart: 0
    Quantity:
    Price:
    $8.83
    Subtotal:
  • KIBBLEWHITE Valve Guide 20-20700

    KIBBLEWHITE Valve Guide 20-20700

    KIBBLEWHITE

    $29.60
    Precision-machined from C630, Compatible with no-lead fuel and accept any type of valve-stem material, Provide maximum service with chromed valve stems, Feature a tapered nose design for maximum...
    09262014
    SKU:
    09262014
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    VALVE GUIDE
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    BRONZE
    OUTSIDE DIAMETER IMPERIAL:
    0.5620'
    SIZE IMPERIAL:
    STANDARD
    APPLICATION:
    EXHAUST
    INSIDE DIAMETER IMPERIAL:
    0.2750'
    BASE COLOR:
    BROWN
    MATERIAL:
    C630 BRONZE
    UNITS:
    EACH
    $29.60
    Qty in Cart: 0
    Quantity:
    Price:
    $29.60
    Subtotal:
  • KIBBLEWHITE Valve Guide - Big Twin 20-30HSC

    KIBBLEWHITE Valve Guide - Big Twin 20-30HSC

    KIBBLEWHITE

    $8.83
    Precision-machined from cast iron, Compatible with no-lead fuel and accept any type of valve-stem material, Made in the U.S.A.
    09262029
    SKU:
    09262029
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    PRODUCT NAME:
    VALVE GUIDE
    RIDING STYLE:
    STREET
    APPLICATION:
    EXHAUST
    MATERIAL:
    CAST IRON
    OUTSIDE DIAMETER IMPERIAL:
    0.5900'
    INSIDE DIAMETER IMPERIAL:
    0.3760'
    SIZE IMPERIAL:
    OVERSIZE (+0.025')
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $8.83
    Subtotal:
  • KIBBLEWHITE Valve Guide 20-2029M

    KIBBLEWHITE Valve Guide 20-2029M

    KIBBLEWHITE

    $15.10
    Precision-machined guides, Manganese bronze guide material is softer than nickel aluminum bronze valve guides, Excellent heat conductivity which promotes long valve life, Guides can be easily reamed...
    09262273
    SKU:
    09262273
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    SIZE IMPERIAL:
    OVERSIZE (+0.010')
    INSIDE DIAMETER IMPERIAL:
    0.3760'
    PRODUCT NAME:
    VALVE GUIDE
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    APPLICATION:
    INTAKE
    OUTSIDE DIAMETER IMPERIAL:
    0.5750'
    MATERIAL:
    BRONZE
    Qty in Cart: 0
    Quantity:
    Price:
    $15.10
    Subtotal:
  • KIBBLEWHITE Valve Guide 20-2060M

    KIBBLEWHITE Valve Guide 20-2060M

    KIBBLEWHITE

    $15.10
    Precision-machined guides, Manganese bronze guide material is softer than nickel aluminum bronze valve guides, Excellent heat conductivity which promotes long valve life, Guides can be easily reamed...
    09262287
    SKU:
    09262287
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    MATERIAL:
    BRONZE
    PRODUCT NAME:
    VALVE GUIDE
    RIDING STYLE:
    STREET
    APPLICATION:
    EXHAUST
    OUTSIDE DIAMETER IMPERIAL:
    0.6250'
    SIZE IMPERIAL:
    STANDARD
    UNITS:
    EACH
    INSIDE DIAMETER IMPERIAL:
    0.3745'
    $15.10
    Qty in Cart: 0
    Quantity:
    Price:
    $15.10
    Subtotal:
  • KIBBLEWHITE Valve Guide 20-2064M

    KIBBLEWHITE Valve Guide 20-2064M

    KIBBLEWHITE

    $15.10
    Precision-machined guides, Manganese bronze guide material is softer than nickel aluminum bronze valve guides, Excellent heat conductivity which promotes long valve life, Guides can be easily reamed...
    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
    Precision-machined guides, Manganese bronze guide material is softer than nickel aluminum bronze valve guides, Excellent heat conductivity which promotes long valve life, Guides can be easily reamed...
    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
    Precision-machined guides, Manganese bronze guide material is softer than nickel aluminum bronze valve guides, Excellent heat conductivity which promotes long valve life, Guides can be easily reamed...
    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
    Precision-machined from cast iron, Compatible with no-lead fuel and accept any type of valve-stem material, Made in the U.S.A.
    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
    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
    Precision-machined from cast iron, Compatible with no-lead fuel and accept any type of valve-stem material, Made in the U.S.A.
    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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