150/160/170, 2 valve, High compression head. Stock tuned. Honda port compatible
Complete head from OORacing with new small combustion chamber for a better compression ratio.
2 x Rockers and shafts
1 x Cam shaft 7mm lift stock duration
2 x valve covers
1 x Cam wheel cover
2 x Exhaust studs
1 x Valve spring set with top caps
1 x Inlet valve 28mm
1 x Exhaust valve 23mm
Cam sprocket not included
Valve clearances are pre set but will need checking when head has been fitted
This head is a direct bolt on for the YX 150/160/170 2 valve engines