TB Stock Head, 88cc Big Bore Kit – Various Models

TB Stock Head, 88cc Bore Kit – Various Models

This TB 88cc Big Bore Performance Kit (52mm) is for use with the stock OEM Honda cylinder head.  It includes the following features:

• Lightweight aluminum cylinder with steel sleeve
• Cast in mounts on cylinder for aftermarket skid plates
• Oversized cooling fins on cylinder for efficient heat dissipation
• High compression 52mm piston with rings, pin, & clips
• Head gasket kit
• NO case boring required
• Easy bolt on power!!

The kit will work on the following Honda models:

• Z50 K1-81
• CT70 K0-81
• All SL70 & XL70
• All ATC70, TRX70, & CL70

Note: We also recommend purchasing a high volume oil pump kit. It will save a lot of time and effort if the oil pump is installed while installing the bore kit (requires cylinder removal). Also see the Info section for installation info and other info on our performance products.