High performance 66cc cylinder

Arty

Well-Known Member
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Feb 12, 2015
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Saskatoon, Saskatchewan, Canada
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.
 
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.
 
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.
 
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