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 90-91400
KIBBLEWHITE
$1,021.95A complete cylinder head refresh demands precision components that can handle sustained high RPM and thermal stress without compromise. This Kibblewhite service kit delivers everything needed for a proper top-end overhaul, eliminating the guesswork of...09263115- SKU:
- 09263115
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- MATERIAL:
- C630 BRONZE
- MATERIAL:
- TITANIUM
- MODEL:
- BLACK DIAMOND™
- SPRING OPEN PRESSURE:
- 177 LB
- SPRING SEAT PRESSURE:
- 57 LB
- APPLICATION:
- INTAKE
- RIDING STYLE:
- ATV
- SPRING LIFT:
- 0.470'
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- SPRING LIFT IMPERIAL:
- 0.470'
$1,021.95 -
KIBBLEWHITE Cylinder Head Service Kit 30-33300
KIBBLEWHITE
$449.60A complete top-end refresh demands precision components that work together seamlessly—and that's exactly what the KIBBLEWHITE 30-33300 delivers. This comprehensive service kit eliminates the guesswork by combining OEM-quality gaskets, high-performance...09263116- SKU:
- 09263116
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- MATERIAL:
- TITANIUM
- SPRING LIFT IMPERIAL:
- 0.350'
- SPRING SEAT PRESSURE:
- 50 LB
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- SPRING LIFT:
- 0,350'
- MATERIAL:
- C630 BRONZE
- RIDING STYLE:
- OFF-ROAD
- SPRING OPEN PRESSURE:
- 145 LB
- UNITS:
- KIT
$449.60 -
KIBBLEWHITE Cylinder Head Service Kit 30-33320
KIBBLEWHITE
$473.84A complete cylinder head refresh demands precision components that work in concert—and this kit delivers exactly that. Whether you're rebuilding after hard racing or upgrading a stock head, the KIBBLEWHITE 30-33320 eliminates the guesswork by bundling...09263118- SKU:
- 09263118
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- RIDING STYLE:
- OFF-ROAD
- SPRING LIFT:
- 0,380'
- SPRING SEAT PRESSURE:
- 51 LB
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- SPRING LIFT IMPERIAL:
- 0.380'
- APPLICATION:
- INTAKE
- MATERIAL:
- TITANIUM
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- MATERIAL:
- C630 BRONZE
- SPRING OPEN PRESSURE:
- 160 LB
$473.84Qty in Cart: 0Quantity:Price:$473.84Subtotal: -
KIBBLEWHITE Cylinder Head Service Kit 30-33330
KIBBLEWHITE
$513.75A complete top-end refresh requires more than just new gaskets—your cylinder head needs precision components that can handle sustained RPMs and thermal stress. The KIBBLEWHITE 30-33330 Service Kit delivers everything necessary to restore flow,...09263119- SKU:
- 09263119
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- MODEL:
- WHITE DIAMOND™
- RIDING STYLE:
- OFF-ROAD
- SPRING LIFT IMPERIAL:
- INTAKE 0.440', EXHAUST 0.405'
- SPRING OPEN PRESSURE:
- INTAKE 162 LB, EXHAUST 220 LB
- SPRING SEAT PRESSURE:
- INTAKE 50 LB, EXHAUST 90 LB
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- MATERIAL:
- C630 BRONZE
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- SPRING LIFT:
- INTAKE 0,440' , EXHAUST 0,405'
- APPLICATION:
- INTAKE
- MATERIAL:
- TITANIUM
$513.75 -
KIBBLEWHITE Cylinder Head Service Kit 30-33340
KIBBLEWHITE
$411.82A complete cylinder head refresh demands precision components that work in concert—and this kit delivers exactly that. KIBBLEWHITE's Cylinder Head Service Kit 30-33340 bundles everything needed to restore your dirt bike or side-by-side's top end to...09263120- SKU:
- 09263120
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- MATERIAL:
- TITANIUM
- SPRING OPEN PRESSURE:
- 162 LB
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- SPRING SEAT PRESSURE:
- 40 LB
- MATERIAL:
- C630 BRONZE
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- SPRING LIFT:
- 0,440'
- SPRING LIFT IMPERIAL:
- 0.440'
$411.82 -
KIBBLEWHITE Cylinder Head Service Kit 30-33350
KIBBLEWHITE
$411.82A complete top-end refresh demands quality components engineered for reliability and performance—this kit delivers everything needed to restore or upgrade your cylinder head in one purchase. Whether you're rebuilding after wear or chasing incremental...09263121- SKU:
- 09263121
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- MATERIAL:
- TITANIUM
- APPLICATION:
- EXHAUST
- SPRING LIFT IMPERIAL:
- 0.440'
- SPRING SEAT PRESSURE:
- INTAKE 40 LB, EXHAUST 70 LB
- APPLICATION:
- INTAKE
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- SPRING LIFT:
- 0,440'
- SPRING OPEN PRESSURE:
- INTAKE 147 LB, EXHAUST 203 LB
- MATERIAL:
- C630 BRONZE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$411.82Qty in Cart: 0Quantity:Price:$411.82Subtotal: -
KIBBLEWHITE Cylinder Head Service Kit 30-33360
KIBBLEWHITE
$420.39A complete top-end refresh requires precision components engineered to withstand extreme temperatures and sustained RPMs—this kit delivers every critical component in one package. Whether you're rebuilding after a season or upgrading for competitive...09263122- SKU:
- 09263122
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- SPRING LIFT:
- 0,440'
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- MATERIAL:
- C630 BRONZE
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- SPRING SEAT PRESSURE:
- INTAKE 40 LB, EXHAUST 70 LB
- APPLICATION:
- INTAKE
- MATERIAL:
- TITANIUM
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- ATV
- SPRING LIFT IMPERIAL:
- 0.440'
- SPRING OPEN PRESSURE:
- INTAKE 147 LB, EXHAUST 203 LB
$420.39Qty in Cart: 0Quantity:Price:$420.39Subtotal: -
KIBBLEWHITE Cylinder Head Service Kit 40-41500
KIBBLEWHITE
$453.05A complete top-end refresh demands quality components that work together as a system—not mismatched parts thrown at a problem. The KIBBLEWHITE Cylinder Head Service Kit 40-41500 eliminates guesswork by bundling race-proven valve springs, guides, and...09263123- SKU:
- 09263123
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- SPRING LIFT:
- 0,445'
- SPRING SEAT PRESSURE:
- 46 LB
- APPLICATION:
- INTAKE
- MATERIAL:
- TITANIUM
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- SPRING LIFT IMPERIAL:
- 0.445'
- MATERIAL:
- C630 BRONZE
- SPRING OPEN PRESSURE:
- 155 LB
$453.05 -
KIBBLEWHITE Cylinder Head Service Kit 40-41510
KIBBLEWHITE
$475.16A complete cylinder head refresh demands quality components that work together as a system—not a collection of mismatched parts. The KIBBLEWHITE 40-41510 Service Kit eliminates guesswork by pairing proven valve springs, durable guides, and OEM-spec...09263124- SKU:
- 09263124
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- APPLICATION:
- INTAKE
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- C630 BRONZE
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- SPRING LIFT IMPERIAL:
- 0.445'
- APPLICATION:
- EXHAUST
- SPRING LIFT:
- 0,445'
- SPRING OPEN PRESSURE:
- 155 LB
- MATERIAL:
- TITANIUM
- SPRING SEAT PRESSURE:
- 46 LB
- UNITS:
- KIT
$475.16Qty in Cart: 0Quantity:Price:$475.16Subtotal: -
KIBBLEWHITE Cylinder Head Service Kit 40-41520
KIBBLEWHITE
$475.16A complete cylinder head refresh demands more than piecemeal replacements—you need matched, precision components engineered to work together. The KIBBLEWHITE Cylinder Head Service Kit 40-41520 eliminates the guesswork by bundling everything required for...09263125- SKU:
- 09263125
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- C630 BRONZE
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- SPRING LIFT IMPERIAL:
- 0.445'
- APPLICATION:
- INTAKE
- MATERIAL:
- TITANIUM
- MODEL:
- BLACK DIAMOND™
- SPRING SEAT PRESSURE:
- 46 LB
- APPLICATION:
- EXHAUST
- SPRING LIFT:
- 0,445'
- SPRING OPEN PRESSURE:
- INTAKE 155 LB, EXHAUST 146 LB
$475.16 -
KIBBLEWHITE Cylinder Head Service Kit 40-41470
KIBBLEWHITE
$426.28A complete top-end refresh demands precision components engineered to handle sustained high RPM operation. The KIBBLEWHITE Cylinder Head Service Kit 40-41470 delivers everything needed to restore or upgrade your cylinder head with OEM-quality gaskets and...09263126- SKU:
- 09263126
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- SPRING LIFT IMPERIAL:
- 0.415'
- MATERIAL:
- TITANIUM
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- SPRING LIFT:
- 0,415'
- SPRING OPEN PRESSURE:
- INTAKE 169 LB, EXHAUST 170 LB
- SPRING SEAT PRESSURE:
- INTAKE 64 LB, EXHAUST 65 LB
- MATERIAL:
- C630 BRONZE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$426.28 -
KIBBLEWHITE Cylinder Head Service Kit 40-41480
KIBBLEWHITE
$426.28A complete top-end refresh requires precision components engineered to withstand high RPM loads and thermal stress. The KIBBLEWHITE Cylinder Head Service Kit 40-41480 delivers everything needed to restore flow efficiency, valve sealing integrity, and...09263127- SKU:
- 09263127
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- APPLICATION:
- INTAKE
- SPRING LIFT IMPERIAL:
- 0.415'
- MATERIAL:
- C630 BRONZE
- MATERIAL:
- TITANIUM
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- SPRING LIFT:
- 0,415'
- SPRING OPEN PRESSURE:
- INTAKE 169 LB, EXHAUST 170 LB
- SPRING SEAT PRESSURE:
- INTAKE 64 LB, EXHAUST 65 LB
$426.28 -
KIBBLEWHITE Cylinder Head Service Kit 82-83150
KIBBLEWHITE
$668.26A worn or stock cylinder head limits your engine's potential and reliability under racing conditions. The KIBBLEWHITE 82-83150 Cylinder Head Service Kit gives you everything needed for a complete top-end refresh with race-proven components that improve...09263128- SKU:
- 09263128
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
- APPLICATION:
- EXHAUST
- SPRING LIFT IMPERIAL:
- 0.435'
- SPRING OPEN PRESSURE:
- 205 LB
- SPRING SEAT PRESSURE:
- 80 IB
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- RIDING STYLE:
- ATV
- SPRING LIFT:
- 0,435'
- MATERIAL:
- C630 BRONZE
$668.26 -
KIBBLEWHITE Cylinder Head Service Kit 60-61600
KIBBLEWHITE
$436.00A complete cylinder head refresh demands precision components that work in concert—and this kit delivers exactly that. The KIBBLEWHITE 60-61600 eliminates the guesswork of sourcing individual top-end parts, giving you validated, race-proven components...09263129- SKU:
- 09263129
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- APPLICATION:
- EXHAUST
- SPRING LIFT:
- 0,445'
- MATERIAL:
- TITANIUM
- SPRING SEAT PRESSURE:
- 51 LB
- MATERIAL:
- C630 BRONZE
- RIDING STYLE:
- OFF-ROAD
- SPRING OPEN PRESSURE:
- 160 LB
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- SPRING LIFT IMPERIAL:
- 0.445'
$436.00 -
KIBBLEWHITE Cylinder Head Service Kit 60-61610
KIBBLEWHITE
$473.53A complete top-end refresh demands precision components that restore flow, durability, and reliable power delivery. The KIBBLEWHITE Cylinder Head Service Kit consolidates everything needed to upgrade your dirt bike or side-by-side's cylinder head in one...09263130- SKU:
- 09263130
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- APPLICATION:
- EXHAUST
- SPRING LIFT:
- 0,415'
- SPRING LIFT IMPERIAL:
- 0.415'
- SPRING OPEN PRESSURE:
- INTAKE 168 LB, EXHAUST 157 LB
- MATERIAL:
- TITANIUM
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- MATERIAL:
- C630 BRONZE
- RIDING STYLE:
- OFF-ROAD
- SPRING SEAT PRESSURE:
- INTAKE 61 LB, EXHAUST 56 LB
$473.53Qty in Cart: 0Quantity:Price:$473.53Subtotal: -
KIBBLEWHITE Cylinder Head Service Kit 80-82070
KIBBLEWHITE
$428.22A complete cylinder head refresh isn't just maintenance—it's the foundation for reliable power and longevity in high-rev environments. The Kibblewhite 80-82070 eliminates the guesswork by pairing premium valve springs, durable bronze guides, and...09263132- SKU:
- 09263132
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- SPRING LIFT:
- 0,450'
- SPRING LIFT IMPERIAL:
- 0.450'
- SPRING OPEN PRESSURE:
- 155 LB
- SPRING SEAT PRESSURE:
- 46 LB
- MATERIAL:
- TITANIUM
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- MATERIAL:
- C630 BRONZE
- MODEL:
- WHITE DIAMOND™
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$428.22 -
KIBBLEWHITE Cylinder Head Service Kit 80-82080
KIBBLEWHITE
$430.91A complete cylinder head refresh demands precision components that work together—not a collection of mismatched parts. The KIBBLEWHITE 80-82080 Service Kit eliminates guesswork by bundling everything needed to restore flow, durability, and reliability in...09263133- SKU:
- 09263133
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- APPLICATION:
- INTAKE
- SPRING SEAT PRESSURE:
- 54 LB
- MATERIAL:
- TITANIUM
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- UTV
- SPRING LIFT IMPERIAL:
- 0.480'
- MATERIAL:
- C630 BRONZE
- SPRING LIFT:
- 0,480'
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- SPRING OPEN PRESSURE:
- 195 LB
$430.91Qty in Cart: 0Quantity:Price:$430.91Subtotal: -
KIBBLEWHITE Cylinder Head Service Kit 80-82090
KIBBLEWHITE
$928.95A complete cylinder head refresh demands precision components that work in harmony—and this Kibblewhite service kit eliminates the guesswork by bundling everything needed for a professional-grade top-end rebuild. Whether you're refreshing a high-mileage...09263134- SKU:
- 09263134
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- SPRING LIFT:
- 0,445'
- MODEL:
- BLACK DIAMOND™
- SPRING SEAT PRESSURE:
- 53 LB
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- RIDING STYLE:
- ATV
- SPRING LIFT IMPERIAL:
- 0.445'
- SPRING OPEN PRESSURE:
- 167 LB
- MATERIAL:
- C630 BRONZE
- UNITS:
- KIT
$928.95Qty in Cart: 0Quantity:Price:$928.95Subtotal: -
KIBBLEWHITE Spring Kit - Stainless Steel 30-32440
KIBBLEWHITE
$190.07Stock titanium intake valves wear down quickly under sustained high RPM operation, compromising engine reliability and forcing costly rebuilds. The Kibblewhite Spring Kit converts your cylinder head to forged stainless steel Black Diamond intake valves,...09262978- SKU:
- 09262978
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STAINLESS STEEL
- SPRING LIFT IMPERIAL:
- 0.380'
- SPRING OPEN PRESSURE:
- 160 LB
- TYPE:
- CONVERSION
- PRODUCT NAME:
- VALVE KIT
- SPRING LIFT:
- 0,380'
- RIDING STYLE:
- OFF-ROAD
- SPRING SEAT PRESSURE:
- 51 LB
- UNITS:
- KIT
$190.07Qty in Cart: 0Quantity:Price:$190.07Subtotal: -
KIBBLEWHITE Spring Kit - Stainless Steel 30-31230
KIBBLEWHITE
$185.23If you're running high-RPM applications or extended engine cycles, your OEM intake valvetrain is likely limiting both performance and longevity. The KIBBLEWHITE Spring Kit upgrades your cylinder head to stainless steel Black Diamond intake valves and...09262979- SKU:
- 09262979
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STAINLESS STEEL
- SPRING LIFT IMPERIAL:
- 0.440'
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- SPRING OPEN PRESSURE:
- 147 LB
- SPRING SEAT PRESSURE:
- 40 LB
- TYPE:
- CONVERSION
- UNITS:
- KIT
- SPRING LIFT:
- 0,440'
$185.23
