YX 4V HEAD
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- done Free shipping for orders over 100 euros (Italy only)
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YX 4-VALVE HEAD
YX 4v head, latest version, powerful and reliable.
It is supplied pre-assembled, complete with valves, cams, rockers, ....
It can be installed as an upgrade on all YX 150-160 2v engines bringing them to 4 valves with a significant increase in power.
For the conversion it is necessary to combine the 4mm head with the 60mm YX 4v piston or if you want to increase the cylinder and piston displacement 62mm YX 4v.