You will see an instant performance gain by simply removing your V1 reed and installing the V2
View engine description for modifications done to top end
If you are upgrading from one of our piston port engines we highly recommend that you ship us your engine to be converted
Two gaskets are included for both sides of the isolator as well as two sets of carb bolts to cover most air filter setups
34cc and 35
6224 - Race Ported Zenoah 2 Bolt 25.4cc Top End You will see an instant<p>This Zenoah 25. 4cc big bore kit has been race ported for maximum performance. The intake, exhaust and transfer ports have been opened up for the best possible performance.< p> <p><br >This kit fits the following:< p> <p>Motors: G230RC, G260RC, St23rc, St27rc, He23hp, He26hp.< p> <p>Off road Rc Cars: HPI Baja 5B 5T 5SC, FG Marder,FG Marder Race,FG Monster Beetle,FG Monster Beetle Pro,FG MT5,FG Stadium Truck, Duratrax Firehammer, Carson Attack,