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
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On Sale
KIBBLEWHITE Intake Valve - Titanium - CRF250 - 2018-2020 30-33612T
KIBBLEWHITE
MSRP: $109.33Now: $98.40Was: $109.33Maximize your CRF250's combustion efficiency with a precision-engineered intake valve built for aggressive riding demands. Kibblewhite's titanium construction delivers a significant weight reduction compared to stock steel valves, allowing faster valve...09263283- SKU:
- 09263283
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- HEAD DIAMETER METRIC:
- 33.00 MM
- RIDING STYLE:
- OFF-ROAD
- TULIP ANGLE:
- 16°
- PRODUCT NAME:
- VALVE
- STEM DIAMETER IMPERIAL:
- 0.1961'
- APPLICATION:
- INTAKE
- MATERIAL:
- TITANIUM
- MODEL:
- TENSILITE®
- UNITS:
- EACH
MSRP: $109.33Now: $98.40Was: $109.33 -
On Sale
KIBBLEWHITE Exhaust Valve - Titanium - CRF250 - 2018-2020 30-33616T
KIBBLEWHITE
MSRP: $109.33Now: $98.40Was: $109.33Titanium exhaust valves are essential for high-revving engines where stock valves can't withstand repeated thermal and mechanical stress. The Kibblewhite Tensilite® valve reduces reciprocating mass, allowing your CRF250 to breathe easier and respond...09263284- SKU:
- 09263284
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- MATERIAL:
- TITANIUM
- MODEL:
- TENSILITE®
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- HEAD DIAMETER METRIC:
- 26.00 MM
- RIDING STYLE:
- OFF-ROAD
- STEM DIAMETER IMPERIAL:
- 0.1956'
- TULIP ANGLE:
- 18°
MSRP: $109.33Now: $98.40Was: $109.33 -
On Sale
KIBBLEWHITE Valve Spring Kit 30-33650
KIBBLEWHITE
MSRP: $229.93Now: $206.94Was: $229.93If you're running a high-lift cam or forced induction setup, your stock valve springs are a liability. The KIBBLEWHITE 30-33650 kit delivers the spring rates and valve control needed to keep your valvetrain stable at elevated RPMs, preventing float and...09263285- SKU:
- 09263285
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- RIDING STYLE:
- STREET
- SPRING LIFT:
- 0,390'
- SPRING SEAT PRESSURE:
- 49 LB
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SPRING KIT
- SPRING LIFT IMPERIAL:
- 0.390'
- TYPE:
- VALVE
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- SPRING OPEN PRESSURE:
- 160 LB
- UNITS:
- KIT
MSRP: $229.93Now: $206.94Was: $229.93 -
On Sale
KIBBLEWHITE Intake Valve 30-33662
KIBBLEWHITE
MSRP: $37.55Now: $33.80Was: $37.55Intake valve performance directly impacts your engine's breathing efficiency and combustion consistency—two factors that separate competitive lap times from the middle of the pack. The Kibblewhite Black Diamond™ valve eliminates the weak point of stock...09263286- SKU:
- 09263286
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- LENGTH IMPERIAL:
- 3.280'
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- APPLICATION:
- INTAKE
- HEAD DIAMETER METRIC:
- 30.00 MM
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- TULIP ANGLE:
- 20°
- UNITS:
- EACH
- STEM DIAMETER IMPERIAL:
- 0.1766'
MSRP: $37.55Now: $33.80Was: $37.55 -
On Sale
KIBBLEWHITE Top End Service Kit 30-33700
KIBBLEWHITE
MSRP: $660.02Now: $594.02Was: $660.02A complete top-end rebuild demands precision components engineered to withstand extreme combustion pressures and high RPM cycles—this kit delivers all the critical parts in one package, eliminating guesswork and compatibility issues. Whether you're...09263289- SKU:
- 09263289
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- TOP END SERVICE KIT
MSRP: $660.02Now: $594.02Was: $660.02 -
On Sale
KIBBLEWHITE Top End Service Kit 60-61850
KIBBLEWHITE
MSRP: $660.02Now: $594.02Was: $660.02A top-end rebuild is one of the most critical investments you can make in your engine's longevity and power output. The KIBBLEWHITE 60-61850 kit eliminates the guesswork by bundling every component you need for a complete, professional-grade...09263290- SKU:
- 09263290
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- TOP END SERVICE KIT
MSRP: $660.02Now: $594.02Was: $660.02 -
On Sale
KIBBLEWHITE Intake Valve Guide 82-82270
KIBBLEWHITE
MSRP: $18.54Now: $16.69Was: $18.54Valve guide wear accelerates engine degradation and compromises combustion efficiency—precision replacement guides are essential for maintaining cylinder head integrity and valve sealing performance. KIBBLEWHITE's manganese bronze guides offer superior...09263291- SKU:
- 09263291
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- INSIDE DIAMETER IMPERIAL:
- 0.2155'
- MATERIAL:
- BRONZE
- OUTSIDE DIAMETER IMPERIAL:
- 0.4353'
- SIZE IMPERIAL:
- STANDARD
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
MSRP: $18.54Now: $16.69Was: $18.54 -
On Sale
KIBBLEWHITE Exhaust Valve Guide 82-82420
KIBBLEWHITE
MSRP: $18.54Now: $16.69Was: $18.54Valve guide wear is one of the most common culprits behind oil burning, poor sealing, and accelerated valve stem degradation—and replacing worn guides is essential for any serious engine rebuild. The KIBBLEWHITE 82-82420 exhaust valve guides deliver...09263292- SKU:
- 09263292
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- PRODUCT NAME:
- VALVE GUIDE
- INSIDE DIAMETER IMPERIAL:
- 0.2155'
- OUTSIDE DIAMETER IMPERIAL:
- 0.4353'
- APPLICATION:
- EXHAUST
- MATERIAL:
- BRONZE
- SIZE IMPERIAL:
- STANDARD
MSRP: $18.54Now: $16.69Was: $18.54 -
On Sale
KIBBLEWHITE Valve Spring Kit 82-83300
KIBBLEWHITE
MSRP: $355.28Now: $319.75Was: $355.28Valve springs are critical to engine reliability—they control valve timing and prevent float at high RPMs, which can cause catastrophic engine failure. The Kibblewhite 82-83300 kit delivers precision-engineered components built to withstand extreme...09263293- SKU:
- 09263293
- Availability:
- Ships Same Business Day
- Weight:
- 1.11 LBS
- APPLICATION:
- INTAKE
- SPRING LIFT IMPERIAL:
- 0.450'
- RIDING STYLE:
- UTV
- APPLICATION:
- EXHAUST
- SPRING OPEN PRESSURE:
- 181 LB
- TYPE:
- VALVE
- MATERIAL:
- TITANIUM
- PRODUCT NAME:
- SPRING KIT
- SPRING LIFT:
- 0,450'
- SPRING SEAT PRESSURE:
- 64 LB
- UNITS:
- KIT
MSRP: $355.28Now: $319.75Was: $355.28Qty in Cart: 0Quantity:Price:MSRP: $355.28Now: $319.75Was: $355.28Subtotal: -
On Sale
KIBBLEWHITE Valve Spring Kit 82-83450
KIBBLEWHITE
MSRP: $262.77Now: $236.49Was: $262.77Valve springs are critical to engine reliability—weak or worn springs lead to valve float, loss of compression, and catastrophic engine damage at high RPM. The KIBBLEWHITE Valve Spring Kit 82-83450 delivers the durability and precision needed to maintain...09263296- SKU:
- 09263296
- Availability:
- Ships Same Business Day
- Weight:
- 1.31 LBS
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SPRING KIT
- SPRING LIFT:
- 0,450'
- TYPE:
- VALVE
- SPRING OPEN PRESSURE:
- 181 LB
- SPRING SEAT PRESSURE:
- 64 LB
- UNITS:
- KIT
- MATERIAL:
- HIGH TENSILE STEEL
- MATERIAL:
- VITON
- RIDING STYLE:
- UTV
- APPLICATION:
- INTAKE
- SPRING LIFT IMPERIAL:
- 0.450'
MSRP: $262.77Now: $236.49Was: $262.77Qty in Cart: 0Quantity:Price:MSRP: $262.77Now: $236.49Was: $262.77Subtotal: -
On Sale
KIBBLEWHITE Spring Kit - Steel 80-81700
KIBBLEWHITE
MSRP: $327.95Now: $295.16Was: $327.95If you're running a high-lift cam or boosted engine, your stock valve springs simply won't survive sustained RPM. The Kibblewhite Spring Kit steps up valvetrain control with CNC-machined titanium retainers and dual Cr-Si springs engineered to handle...09263206- SKU:
- 09263206
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- SPRING OPEN PRESSURE:
- 167 LB
- RIDING STYLE:
- UTV
- SPRING LIFT IMPERIAL:
- 0.445'
- APPLICATION:
- EXHAUST
- SPRING LIFT:
- 0,445'
- TYPE:
- VALVE
- PRODUCT NAME:
- SPRING KIT
- SPRING SEAT PRESSURE:
- 53 LB
- UNITS:
- KIT
MSRP: $327.95Now: $295.16Was: $327.95 -
On Sale
KIBBLEWHITE Cylinder Head Service Kit 30-33430
KIBBLEWHITE
MSRP: $466.23Now: $419.61Was: $466.23A complete cylinder head refresh requires precision components that work in concert—and this kit eliminates the guesswork by bundling everything you need in one box. Whether you're chasing peak horsepower on the track or maintaining reliability in harsh...09263223- SKU:
- 09263223
- Availability:
- Ships Same Business Day
- Weight:
- 0.86 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- C630 BRONZE
- MATERIAL:
- TITANIUM
- MODEL:
- BLACK DIAMOND™
- SPRING SEAT PRESSURE:
- 45 LB
- RIDING STYLE:
- OFF-ROAD
- SPRING LIFT IMPERIAL:
- 0.350'
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- SPRING LIFT:
- 0,350'
- SPRING OPEN PRESSURE:
- 143 LB
MSRP: $466.23Now: $419.61Was: $466.23Qty in Cart: 0Quantity:Price:MSRP: $466.23Now: $419.61Was: $466.23Subtotal: -
On Sale
KIBBLEWHITE Cylinder Head Service Kit 30-33450
KIBBLEWHITE
MSRP: $412.17Now: $370.95Was: $412.17A complete cylinder head refresh demands quality components that work in harmony—and this kit delivers exactly that. The KIBBLEWHITE 30-33450 eliminates the guesswork of sourcing individual valve springs, guides, seals, and gaskets by bundling everything...09263224- SKU:
- 09263224
- Availability:
- Ships Same Business Day
- Weight:
- 1.26 LBS
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- SPRING LIFT IMPERIAL:
- 0.440'
- SPRING SEAT PRESSURE:
- INTAKE 40 LB, EXHAUST 70 LB
- MATERIAL:
- TITANIUM
- 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
MSRP: $412.17Now: $370.95Was: $412.17Qty in Cart: 0Quantity:Price:MSRP: $412.17Now: $370.95Was: $412.17Subtotal: -
On Sale
KIBBLEWHITE Cylinder Head Service Kit 30-33490
KIBBLEWHITE
MSRP: $420.90Now: $378.81Was: $420.90A complete top-end refresh requires more than piecemeal replacements—this kit delivers everything needed to restore cylinder head performance and reliability in one purchase. Whether you're rebuilding after high-mileage use or upgrading for competition,...09263226- SKU:
- 09263226
- Availability:
- Ships Same Business Day
- Weight:
- 1.96 LBS
- APPLICATION:
- EXHAUST
- SPRING OPEN PRESSURE:
- 185 LB
- SPRING SEAT PRESSURE:
- 70 LB
- RIDING STYLE:
- OFF-ROAD
- SPRING LIFT IMPERIAL:
- 0.400'
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- MATERIAL:
- TITANIUM
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- RIDING STYLE:
- STREET
- SPRING LIFT:
- 0,400'
- MATERIAL:
- C630 BRONZE
MSRP: $420.90Now: $378.81Was: $420.90Qty in Cart: 0Quantity:Price:MSRP: $420.90Now: $378.81Was: $420.90Subtotal: -
On Sale
KIBBLEWHITE Cylinder Head Service Kit 82-83210
KIBBLEWHITE
MSRP: $668.26Now: $601.43Was: $668.26A complete top-end refresh demands precision components that work together as a system—not mismatched aftermarket pieces. The KIBBLEWHITE 82-83210 Cylinder Head Service Kit delivers everything needed to restore flow, durability, and RPM capability on...09263227- SKU:
- 09263227
- Availability:
- Ships Same Business Day
- Weight:
- 2.61 LBS
- MATERIAL:
- C630 BRONZE
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- SPRING OPEN PRESSURE:
- 205 LB
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- SPRING LIFT IMPERIAL:
- 0.435'
- APPLICATION:
- INTAKE
- MATERIAL:
- TITANIUM
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- ATV
- SPRING LIFT:
- 0,435'
- SPRING SEAT PRESSURE:
- 80 IB
MSRP: $668.26Now: $601.43Was: $668.26 -
On Sale
KIBBLEWHITE Cylinder Head Service Kit 82-83220
KIBBLEWHITE
MSRP: $652.03Now: $586.83Was: $652.03A top-end refresh demands more than just gaskets—you need valve train components engineered to handle sustained RPMs and temperature spikes that stock components can't tolerate. This Kibblewhite service kit delivers the critical upgrades: racing-grade...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'
MSRP: $652.03Now: $586.83Was: $652.03Qty in Cart: 0Quantity:Price:MSRP: $652.03Now: $586.83Was: $652.03Subtotal: -
On Sale
KIBBLEWHITE Valve Spring Kit 82-82550
KIBBLEWHITE
MSRP: $232.66Now: $209.39Was: $232.66Valve spring degradation is one of the most common failure points in high-performance engines, leading to loss of compression, misfires, and catastrophic engine damage. The KIBBLEWHITE Valve Spring Kit 82-82550 delivers OEM-quality springs paired with...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
MSRP: $232.66Now: $209.39Was: $232.66 -
On Sale
KIBBLEWHITE Cylinder Head Service Kit 82-83240
KIBBLEWHITE
MSRP: $652.03Now: $586.83Was: $652.03A worn or stock cylinder head limits your engine's potential—valve float, heat buildup, and poor sealing rob you of power and reliability. The KIBBLEWHITE 82-83240 Cylinder Head Service Kit gives you a complete top-end refresh with race-proven components...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'
MSRP: $652.03Now: $586.83Was: $652.03 -
On Sale
KIBBLEWHITE Cylinder Head Service Kit 60-61790
KIBBLEWHITE
MSRP: $335.14Now: $301.63Was: $335.14A complete top-end refresh demands precision components that work together—and this Kibblewhite kit delivers exactly that. Whether you're running dirt bikes, MX machines, or side-by-sides, worn valve springs, guides, and seals rob you of compression,...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
MSRP: $335.14Now: $301.63Was: $335.14 -
On Sale
KIBBLEWHITE Valve Spring Kit - Beehive 91-91300
KIBBLEWHITE
MSRP: $409.48Now: $368.53Was: $409.48High-revving engines demand valve springs engineered for precision and durability—especially when you're pushing performance limits on track or in competition. The Kibblewhite Beehive 91-91300 kit delivers progressive spring rates designed to maintain...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
MSRP: $409.48Now: $368.53Was: $409.48
