wat bore?

[shee23]

i just recieved some used cylinders that i bought and the guy told me they were stock 64mm bore but they dont look like it. it looks like the sleeve and ports have been smoothed out. is there any way to tell without a micrometer?

[trex banshee]

did they happen to come with pistons?

[nuc_welder]

Heres a conversion chart to convert from inches to mm

 

http://www.worldwidemetric.com/metcal.htm

[Ducman]

You need at least a set of dial callipers to measure the bore size accurately enough. You can pick one up at a tool shop for around $20. Or just go to a mechine shop and have them measure it. If you have pistons that fit the cylinders then the bore size is stamped on the dome of the piston.