Malossi V4 Head For Vespa GTS 300 (PI3813273)
Malossi V4 Head, Aluminum
For Vespa GTS 300
Valve seats in steel, cobalt, molybdenum and copper alloy with special thermochemical treatment.
Larger intake valves at ø 25 in special steel alloyed with thermochemical treatment.
Larger exhaust valves with ø 22.2 material Nimonich 80 (nickel, chrome, titanium and aluminum alloy).
Exhaust and intake springs in pre-hardened chrome silicon steel and stabilized with recalculated load suitable for engine upgrade.
Recommended for use with the Malossi Big Bore Kit. If not using the Malossi big bore kit, stock piston must be modified to prevent valve collision.
Stock camshaft can be re-used without modification.
Professional installation is mandatory.
All sales final.