Ported 36mm GP290 28.5cc Top End Kit

This 28.5cc big bore kit has been race ported by us for the best performance possible. The intake, exhaust, and transfer ported have been enlarged and reshaped for maximum performance.

This big bore kit fits the following:

Motors: G230RC, G260RC, St23rc, St27rc, He23hp, He26hp.

Offroad Rc Cars:HPI Baja 5B, FG Marder,FG Marder Race,FG Monster Beetle,FG Monster Beetle Pro,FG MT5,FG Stadium Truck, Duratrax Firehammer, Carson Attack, Smartech Travel,ler,FG Leopard, XTM
Leopard Race,FG Leopard STX,FG Marder Beetle,FG Pajero, And most other large scale cars

Onroad Rc Cars: FG Evo-4,FG Sportline, HARM,FG F-1 Competition, And most other large scale onroad cars.