RE: Cox .051 R/C Engine Hi-Perf Glow Head
The parts that are special to the TD .051R/C are mostly the carb and plastic front end that attaches it. The muffler assembly is also only made for this engine. If I were able, I'd buy one of the muffler assemblies-I have mine on a 4:1 gear reduction unit, and one of the muffler screws failed. No idea which cylinder it uses, the muffling makes SPI a no-go.