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DR.honda or ANYONE! can i put a big bore pston in 1997 sppedster and other side oem

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chadsheffield

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The cylinder shop said one engine needs to be bored to 82.5mm and the other twin engine to 83.5 to clean up everything. so in this case i need to get weisco big bore 83.5 pistons to fit one engine and the other engine 82.5 pistons. Will this be okay that the twin engines wont have the exact same size piston? Please let me know. i hope so cause im trying to save money. thanks. also its 1997 speedster 717 and the stock oem piston is 82mm
 
Yep, it should be fine. The engines don't need to be exact. (left to right)

Normally, I would say that you will have head gasket issues... but on a 720, you have big O-rings. So, you will be fine with that too.
 
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