This is the NT-16 .16 cu in (2.67cc) Pull Start Engine from Cen Racing.
FEATURES: For 1/10 scale on and off-road applications
Standard (non-pilot) short crankshaft
Two needle rotary carburetor
Side exhaust
Eight fin cooling head
"ABC" cylinder & piston construction "A"luminum piston,"B"rass
cylinder liner, with a "C"hrome plating on the cylinder
Three port cylinder liner