TBparts CRF70 Stock Head, 88cc Bore Kit- All Models
88cc Big Bore
Performance Kit (52mm):
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
We recommend purchasing a high
volume oil pump kit (available in this section).
Installation Note: It will save a
lot of time and effort if the oil pump is installed while installing the bore
kit (requires cylinder removal).