This isolator block is thinner than the stock block mounting the carburetor closer to the engine improving low end throttle response and overall engine performance. Stock Block is 21mm & this block is 17.5mm. This isolator block will work with any 1/5th scale Zenoah G320RC engine on any 1/5th scale application including; HPI Baja 5B/T, Losi 5IVE & others.
Isolator block is machined from billet aircraft grade aluminum.
