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I have a 2003 Rancher 350 that the rings just went out on. So instead of doing a ring job on it, i would much rather bore out the enging, put a bigger piston and maybe a cam on it as well. Could anyone give me some advice on what exactly i should do to it?

I would like to get it up to 400 at least, if possible, more. Any advice is welcome.

-JOE
 

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Welcome to the forums. Some one will be along shortley to assist you with your question. There are some top notch guys on hear with this stuff.
 

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You won't be able to 400 out of it unless the cylinder is sleeved and possibly a strocker crank, and you will probably have cooling problems. bore it .30 over and put a higher compression piston, new cam and a exhaust and get a jet kit also.
 

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I agree with 69QR.
 
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