Complete cylinder head motocross, atv Loncin 250cc, 4T. Certified quality !
Characteristics:
combustion chamber diameter: 66 mm inlet diameter: 26mm, distance between holes 62mm M6, exhaust diameter: 40 mm, distance 58 mm M8, shaft length: 92.3 mm spark plug thread: M12x1.25 suction valve: length: 90 mm, mushroom diameter: 32 mm shaft diameter: 5.5 mm exhaust valve: length 89.2 mm mushroom diameter: 27 mm shaft diameter: 5.5 mm valve adjustment plugs for this head FM0256