TB Race Head, 88cc Bore & 20mm Carb Kit - All Models

Your Price: $358.99
Retail Price:$375.00
Your Savings:$16.01(4%)
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Part Number:142
TB Race Head, 88cc Bore & 20mm Carb Kit - All Models
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TB Parts Race Head, 88cc Big Bore kit, and 20mm Carburetor Performance Kit:

UPDATE - Until further notice, this kit will also include the following items at no extra charge and free shipping!!!

- 6 Piece main jet kit for the 20mm carb ($10 savings)
- High Volume oil pump ($25 savings)
- Clutch cover gasket ($3 savings)
- Performance CDI ($25 savings)
- Free shipping ($10 savings)

$73 total savings

6/26/06 Race Head has been updated for even more performance!  It now has 25/22mm valves with better porting/flow.  TB also kept the combustion chamber the same size and changed the angle of the valves slightly. This will really wake up your stock engine and is comparable in power to the much larger Chinese 124cc engines!!! Key features include the following:

- Lightweight aluminum cylinder with steel sleeve
- Cast in mounts on cylinder for aftermarket skid plates
- Oversized cooling fins on cylinder for efficient heat dissipation
- 52mm high compression piston with rings, pin, & clips
- Head gasket kit and clutch cover gasket.
- High performance race camshaft (for the Race Head only)
- Race Head – Larger valves (now 25/22mm) and better flow for increased performance. Also has bigger cooling fins. Includes all necessary parts and comes assembled! NEW! 06/08 - The exhaust valve has been upgraded to stainless steel (21-4N material) .
- 20mm Performance carb assembly. Includes: 20mm carb, intake, heatstop, gaskets, mounting hardware/wrench, long adjustable throttle cable, and a angled dual layer foam air filter.


- Honda Z50 1988-1999

- Honda XR50 All Years

- Honda CRF50 All Years

Kit Includes

- TBW0365 Piston

- TBW0206 Gaskets

- TBW0156 Cylinder

- TBW0125 Carb

- TBW0273 Intake Manifold

- TBW0301 Throttle Cable

- TBW0398 Air Filter

- TBW0300 Race Cam

- TBW0949 Race Head & Valves Assembly

- TBW0226 Oil Pump

- TBW0262 CDI 

- TBW0294 Jets

- TBW0287 Gasket

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