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Full Version: Anyone running a Polaris 851(860) big bore kit?
HCS Snowmobile Forums > Snowmobile Forums > Polaris General Discussion > XC/XCR

NVR8NF
Is anyone running an 851(some people call them 860) big bore kit on their 800 using the stock cylinders? Looking for some real world experience if possible. Let me know who did the work and what kind of gains.
xc-mark
see the post in the Prox section..... same post
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