88cc V2 Race Head & Mikuni VM26 Bore Kit Honda - CRF50 XR50 CRF70 XR70 - TBW9115

88cc V2 Race Head & Mikuni VM26 Bore Kit Honda - CRF50 XR50 CRF70 XR70 - TBW9115TB Parts 88cc Race Head V2 Kit , 52mm Bore Kit, & Mikuni VM26 Carb Kit. Converts the following stock models to 88cc: 1982 and newer Honda Z50, CT70, XR50, XR70, CRF50, & CRF70. Starting with the V2 cylinder heads larger stainless steel (21 4N) valves, better porting, roller cam, and forged aluminum roller rocker arms that allow the engine to rev quicker, farther, and make much more power than the stock setup. Add the high compression 52mm bore kit

Important Note: This kit does not contain a piston

Includes all necessary parts and comes assembled

If you want a completely silent option please go with the Takegawa primary gear

Comes complete with billet breather

and 20mm Performance carb kit

Requires drilling oiling outlet to 2mm

- 5mm Valve Stem

- NEW Head gasket kit - Now includes the cylinder head O-ring set and an exhaust gasket

(Previously TBW0475)

141cc (57mm) Bore Kit and Mikuni VM26 Carb/Kit for Chinese 120cc Engines with Big Valve Cylinder Heads (27/23mm or 30/23mm):

This kit is also recommended for use only with big valve heads such as the common Lifan head with 27/23mm valves or our Import Race Head with 30/23

The new head may appear to be the same on the outside as our other race head but internally