So from what I have read on other forums usually you can go about 1mm overbore with a head gasket from a std gasket kit. But my cb350 pistons are 65.5mm vs the stock 64mm. With that being said here are my measurements. Diameters Top of Piston=64.9mm, Bore 65.5mm, and gasket 65.66mm. Is there a rule of thumb or a spec to follow and will that gap be enough or do I have to drop $40+ on new head gasket.
CB350 Standard head gasket with big bore piston?
- Thread starter jmc2282
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