Boss .21 Z-3 Buggy Off/Road 3 port Race Engine
This is the Boss .21 Z-3 Off/Road engine and is specially made for the 1/8 Off/Road class.
New Piston&Lineer, underhead plug, black threated on new cranckcase, and new Carburetor with metal Bushing.
In this Version included Swiss Bearing for Best Perfomances!!!
Crankshaft & Type: 14,20mm Turbo SG
Bearing: Swiss High Speed
Glow Plug: Turbo