Head kit Z110 or 125 Big valve HO engines only
This head fits the HO High output engine with oil filter clutch cover
We can offer a tuned gas flowed version as well see drop down.
Head is supplied with the following
1 X Z40 performance cam shaft “no sprocket”
1 x Head screw cap valve cover
1 x Pair of valves 27mm & 23mm
1 x Pair of rocker and shafts
1 x pair of Race valve springs 40 psi