High performance 66cc cylinder

Discussion in '2-Stroke Engines' started by Arty, Jul 11, 2016.

  1. Arty

    Arty Active Member

    Does anyone know of a source for a ported cylinder for a GT5A 66cc engine with 40mm intake stud spacing?
    I have tried numerous sources, and favour one from CR Machine, but I can't seem to get any response from anyone as to whether they have a cylinder with 40mm intake stud spacing rather than 32mm.
    I have had good luck in the past with CR Machine, but they don't seem to be answering my e-mail queries any more.

  2. jaguar

    jaguar Well-Known Member

    click on my signature link to find out how easy it is to port the cylinder yourself.
    JNMotors offered a ported cylinder but it was more for racing than street use.
    If you want something done right you have to do it yourself.
  3. Arty

    Arty Active Member

    Thanks Jaguar - I'm not afraid to do some modding on my own, but sadly, I still need a new jug, since mine is in bad shape - scored, and flaking a bit, with quite a bit of ring ridge from use.