26cc Water Cooled Cylinder Head fit ZENOAH G260PUM Marine Engine Rc Boat

These heads have larger ports and much higher compression than a stock zenoah on top of being very nice castings. so if you try to run a +1 crank you will need 2 stock head gaskets combined to get the right clearances. which is a good thing you dont have to turn it down in a lathe to get high compression.