Dirt Bike Engine Valves and Parts
Dirt Bike Engine Valves & Parts: Kibblewhite Black Diamond Exhaust Valves & Spring Kits at JJ Motorsports
Upgrade your dirt bike's valvetrain for maximum flow, heat resistance, and durability with premium valves and parts from JJ Motorsports, precision-engineered for superior performance in motocross, enduro, and trail riding. Our selection includes Black Diamond stainless steel exhaust valves, high-RPM spring kits, keepers, seals, and guides designed for increased lift, reduced wear, and reliable operation under extreme valve float conditions. Compatible with popular 4-stroke models like Honda CRF, Yamaha YZ/WR, KTM SX/EXC, and more, these Kibblewhite components feature one-piece forging, nitride coatings, and dual-spring technology to enhance airflow, prevent valve train failure, and support big-bore or high-compression builds. From exhaust valves with swirl-polished stems to titanium retainer spring kits for lightweight strength, rebuild your cylinder head for championship-level power, longevity, and confidence on every rev.
Shop trusted brands like Kibblewhite for race-proven quality. Explore related categories such as dirt bike piston and ring kits for full top-end rebuilds or dirt bike engine for camshafts and gaskets.
Top Dirt Bike Valve & Parts
- Kibblewhite Valve - Exhaust - Black Diamond 30-33616 – One-piece Black Diamond stainless steel exhaust valve with nitride coating, swirl-polished stem, and hard tip; designed for high-RPM durability and flow in 4-stroke engines.
- Kibblewhite Spring Kit 40-41600 – Dual-spring kit with titanium retainers, chromoly seats, and high-strength springs; supports increased lift and RPM while preventing valve float in performance builds.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
KIBBLEWHITE Cylinder Head Service Kit 82-83220
KIBBLEWHITE
$652.03Kits contain all items to completely refresh and upgrade cylinder heads for popular Dirt/MX and Side x Side models, Cylinder Head Service Kits include the below components:, Lightweight Racing Valve Spring kits with steel or titanium retainers, beehive...09263228- SKU:
- 09263228
- Availability:
- Ships Same Business Day
- Weight:
- 2.56 LBS
- MATERIAL:
- C630 BRONZE
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- SPRING LIFT:
- 0,435'
- SPRING OPEN PRESSURE:
- 205 LB
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- SPRING SEAT PRESSURE:
- 80 IB
- APPLICATION:
- EXHAUST
- SPRING LIFT IMPERIAL:
- 0.435'
$652.03Qty in Cart: 0Quantity:Price:$652.03Subtotal: -
KIBBLEWHITE Valve Spring Kit 82-82550
KIBBLEWHITE
$232.66Black Diamond™ valves feature one-piece stainless steel construction with stellite tips and special impregnation to improve wear properties and reduce friction; White Diamond® valves feature one-piece construction and hard chrome stems, Spring sets...09263229- SKU:
- 09263229
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- MATERIAL:
- VITON
- SPRING LIFT:
- 0,435'
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- APPLICATION:
- EXHAUST
- SPRING LIFT IMPERIAL:
- 0.435'
- SPRING OPEN PRESSURE:
- 205 LB
- TYPE:
- VALVE
- PRODUCT NAME:
- SPRING KIT
- SPRING SEAT PRESSURE:
- 80 IB
- UNITS:
- KIT
$232.66 -
KIBBLEWHITE Cylinder Head Service Kit 82-83240
KIBBLEWHITE
$652.03Kits contain all items to completely refresh and upgrade cylinder heads for popular Dirt/MX and Side x Side models, Cylinder Head Service Kits include the below components:, Lightweight Racing Valve Spring kits with steel or titanium retainers, beehive...09263230- SKU:
- 09263230
- Availability:
- Ships Same Business Day
- Weight:
- 2.61 LBS
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- SPRING OPEN PRESSURE:
- 205 LB
- SPRING SEAT PRESSURE:
- 80 IB
- MATERIAL:
- C630 BRONZE
- MATERIAL:
- STEEL
- SPRING LIFT IMPERIAL:
- 0.435'
- APPLICATION:
- INTAKE
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- RIDING STYLE:
- ATV
- SPRING LIFT:
- 0,435'
$652.03 -
KIBBLEWHITE Cylinder Head Service Kit 60-61790
KIBBLEWHITE
$335.14Kits contain all items to completely refresh and upgrade cylinder heads for popular Dirt/MX and Side x Side models, Cylinder Head Service Kits include the below components:, Lightweight Racing Valve Spring kits with steel or titanium retainers, beehive...09263232- SKU:
- 09263232
- Availability:
- Ships Same Business Day
- Weight:
- 1.06 LBS
- MATERIAL:
- TITANIUM
- RIDING STYLE:
- STREET
- APPLICATION:
- EXHAUST
- SPRING LIFT IMPERIAL:
- 0.440'
- MATERIAL:
- C630 BRONZE
- MODEL:
- WHITE DIAMOND™
- SPRING OPEN PRESSURE:
- 171 LB
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- RIDING STYLE:
- ATV
- SPRING LIFT:
- 0,440'
- SPRING SEAT PRESSURE:
- 57 LB
$335.14 -
KIBBLEWHITE Valve Spring Kit - Beehive 91-91300
KIBBLEWHITE
$369.95Progressively wound springs using Kobe super-clean, chrome silicon-based wire that is heat treated and shot peened, Tight-tolerance, FEA-designed hardened steel Posi-Loc™ style upper retainers to ensure correct assembly height and resist keeper "pull...09263317- SKU:
- 09263317
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- APPLICATION:
- EXHAUST
- SPRING OPEN PRESSURE:
- 161 LB
- TYPE:
- VALVE
- STYLE:
- OVATE WIRE BEEHIVE
- UNITS:
- KIT
- MATERIAL:
- STEEL
- RIDING STYLE:
- UTV
- SPRING LIFT IMPERIAL:
- 0.350'
- SPRING SEAT PRESSURE:
- 51 LB
- APPLICATION:
- INTAKE
- COLLAR MATERIAL:
- STEEL
- PRODUCT NAME:
- SPRING KIT
$369.95 -
KIBBLEWHITE Valve Guide - Standard - Intake/Exhaust 91-91320M
KIBBLEWHITE
$14.36All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance, Made in the U.S.A.09263318- SKU:
- 09263318
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- EXHAUST
- SIZE IMPERIAL:
- STANDARD
- UNITS:
- EACH
- INSIDE DIAMETER IMPERIAL:
- 0.1955'
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE GUIDE
- OUTSIDE DIAMETER IMPERIAL:
- 0.3565'
- RIDING STYLE:
- OFF-ROAD
$14.36 -
KIBBLEWHITE Intake Valve - Standard 91-91312H
KIBBLEWHITE
$37.55White Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel or Inconel-751, Electroplated with a 360º anode, to produce an even coat of the highest grade hard chrome finish, Made in the U.S.A.09263319- SKU:
- 09263319
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- INTAKE
- LENGTH IMPERIAL:
- 3.305'
- SIZE METRIC:
- STANDARD
- STEM DIAMETER IMPERIAL:
- 0.1960'
- RIDING STYLE:
- UTV
- HEAD DIAMETER METRIC:
- 29.01 MM
- MODEL:
- WHITE DIAMOND™
- UNITS:
- EACH
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- TULIP ANGLE:
- 15°
$37.55 -
KIBBLEWHITE Valve Guide 60-60320
KIBBLEWHITE
$19.83All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance, Made in the U.S.A.09260291- SKU:
- 09260291
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- INSIDE DIAMETER IMPERIAL:
- 0.1955'
- OUTSIDE DIAMETER IMPERIAL:
- 0.4170'
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- VALVE GUIDE
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- MATERIAL:
- C630 BRONZE
- SIZE IMPERIAL:
- STANDARD
$19.83 -
KIBBLEWHITE Valve Spring Kit 30-30880
KIBBLEWHITE
$206.09Spring kits contain springs and titanium upper collars; lower collars included as required; spring kits are engineered for use with standard and oversized valves, Spring kits come complete for one motor, Keepers are not included, Made in the U.S.A.09260293- SKU:
- 09260293
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SPRING KIT
- APPLICATION:
- INTAKE
- SPRING OPEN PRESSURE:
- 143 LB
- RIDING STYLE:
- OFF-ROAD
- SPRING LIFT IMPERIAL:
- 0.350'
- TYPE:
- VALVE
- MATERIAL:
- TITANIUM
- UNITS:
- KIT
$206.09 -
KIBBLEWHITE Intake Valve Guide 30-31470
KIBBLEWHITE
$24.89All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance, Made in the U.S.A.09261132- SKU:
- 09261132
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- INSIDE DIAMETER IMPERIAL:
- 0.1961'
- PRODUCT NAME:
- VALVE GUIDE
- MATERIAL:
- C630 BRONZE
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
- SIZE IMPERIAL:
- STANDARD
- OUTSIDE DIAMETER IMPERIAL:
- 0.3965'
- UNITS:
- EACH
$24.89 -
KIBBLEWHITE Intake Valve 80-80060
KIBBLEWHITE
$54.10Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel, Black Diamond™ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear, Made in the U.S.A.KW8080060- SKU:
- KW8080060
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- UTV
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- VALVE
- STEM DIAMETER IMPERIAL:
- 0.2355'
- TULIP ANGLE:
- 15°
- APPLICATION:
- INTAKE
- HEAD DIAMETER METRIC:
- 30.00 MM
- LENGTH IMPERIAL:
- 3.960'
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$54.10 -
KIBBLEWHITE Exhaust Valve 80-80063
KIBBLEWHITE
$54.10Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel, Black Diamond™ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear, Made in the U.S.A.KW8080063- SKU:
- KW8080063
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- HEAD DIAMETER METRIC:
- 32.00 MM
- LENGTH IMPERIAL:
- 3.650'
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- UTV
- TULIP ANGLE:
- 25°
- RIDING STYLE:
- ATV
- STEM DIAMETER IMPERIAL:
- 0.2348'
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- MODEL:
- BLACK DIAMOND™
$54.10 -
KIBBLEWHITE Intake/Exhaust Valve Guide 80-8010
KIBBLEWHITE
$19.89All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance, Made in the U.S.A.KW808010- SKU:
- KW808010
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- VALVE GUIDE
- UNITS:
- EACH
- OUTSIDE DIAMETER IMPERIAL:
- 0.4942'
- SIZE IMPERIAL:
- STANDARD
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- INSIDE DIAMETER IMPERIAL:
- 0.2750'
- MATERIAL:
- AMPCO-45
- RIDING STYLE:
- ATV
$19.89 -
KIBBLEWHITE Exhaust Valve - TRX450R - 31mm 30-30954
KIBBLEWHITE
$31.01Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel, Black Diamond™ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear, Made in the U.S.A.09260419- SKU:
- 09260419
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- HEAD DIAMETER METRIC:
- 31.00 MM
- MODEL:
- BLACK DIAMOND™
- STEM DIAMETER IMPERIAL:
- 0.1957'
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- TULIP ANGLE:
- 20°
- LENGTH IMPERIAL:
- 3.310'
$31.01 -
KIBBLEWHITE Intake Valve 30-30120
KIBBLEWHITE
$54.10Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel, Black Diamond™ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear, Made in the U.S.A.KW3030120- SKU:
- KW3030120
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- TULIP ANGLE:
- 23°
- APPLICATION:
- INTAKE
- HEAD DIAMETER METRIC:
- 30.00 MM
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- LENGTH IMPERIAL:
- 3.605'
- MATERIAL:
- STAINLESS STEEL
- STEM DIAMETER IMPERIAL:
- 0.2145'
- UNITS:
- EACH
$54.10 -
KIBBLEWHITE Exhaust Valve 30-30122
KIBBLEWHITE
$54.10Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel, Black Diamond™ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear, Made in the U.S.A.KW3030122- SKU:
- KW3030122
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- HEAD DIAMETER METRIC:
- 25.00 MM
- RIDING STYLE:
- OFF-ROAD
- LENGTH IMPERIAL:
- 3.585'
- MODEL:
- BLACK DIAMOND™
- TULIP ANGLE:
- 29°
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE
- MATERIAL:
- STAINLESS STEEL
- STEM DIAMETER IMPERIAL:
- 0.2140'
- UNITS:
- EACH
$54.10 -
KIBBLEWHITE Valve Guide 30-3030
KIBBLEWHITE
$37.93All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance, Made in the U.S.A.KW303030- SKU:
- KW303030
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- INSIDE DIAMETER IMPERIAL:
- 0.2150'
- OUTSIDE DIAMETER IMPERIAL:
- 0.4355'
- PRODUCT NAME:
- VALVE GUIDE
- SIZE IMPERIAL:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- EXHAUST
- MATERIAL:
- AMPCO-45
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$37.93 -
KIBBLEWHITE Intake Kit 30-31200
KIBBLEWHITE
$190.07Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valves, Extends the life of the valvetrain and intake components by as much as 4x over the OEM titanium parts, Includes...09260442- SKU:
- 09260442
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- PRODUCT NAME:
- VALVE KIT
- SPRING SEAT PRESSURE:
- 50 LB
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- SPRING LIFT:
- 0,345'
- SPRING LIFT IMPERIAL:
- 0.345'
- SPRING OPEN PRESSURE:
- 145 LB
- TYPE:
- CONVERSION
$190.07 -
KIBBLEWHITE Intake Kit 30-31210
KIBBLEWHITE
$185.23Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valves, Extends the life of the valvetrain and intake components by as much as 4x over the OEM titanium parts, Includes...09260443- SKU:
- 09260443
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- RIDING STYLE:
- OFF-ROAD
- SPRING LIFT:
- 0,440'
- SPRING LIFT IMPERIAL:
- 0.440'
- SPRING OPEN PRESSURE:
- 147 LB
- UNITS:
- KIT
- MATERIAL:
- STAINLESS STEEL
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE KIT
- SPRING SEAT PRESSURE:
- 40 LB
- TYPE:
- CONVERSION
$185.23 -
KIBBLEWHITE Valve Guide 40-40320
KIBBLEWHITE
$17.83All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance, Made in the U.S.A.09260449- SKU:
- 09260449
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- EXHAUST
- OUTSIDE DIAMETER IMPERIAL:
- 0.4363'
- PRODUCT NAME:
- VALVE GUIDE
- UNITS:
- EACH
- INSIDE DIAMETER IMPERIAL:
- 0.2150'
- MATERIAL:
- C630 BRONZE
- SIZE IMPERIAL:
- STANDARD
$17.83
