Oneill Chung Yang 30.5cc Chrome Stroker Engine - Race Ported Version

Oneill Engine stamped and Numbered
PERFECT POWERHOUSE UPGRADE FOR ALL 1/5 SCALE RC TRUCKS AND BUGGIES
Upgrade your Bigfoot Or King Kong 1/5 Scale Monster Trucks !!
The new 30.5cc Cy or Chung Yang Motor comes with a 2mm stuffed sroker crank and a 36mm 4 transfer port big bore Kit . A Walbro wt-668 hp carby is fitted along with a 54mm clutch. The Motor delivers more torque than any other motr on the market and will fit just about every large scale rc vehicle around, including the Smartech traveller and bigfoot, Carson attack and Commanche, HPI Baja 5b, Fs Racing Truck, Buggy and Onroad car, Fg Trucks and Buggies, and many many more. red or black color spark Plug cover fitted.
The following work has been done.
1. Machined combustion chamber for 2mm stroke
2. Resurface all ports for better gas/air mixture
3. Modify transfer ports for better flow
4. Raise/enlarge/reshape exahsut port