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I have a 07 Sportsman 800 EFI that I just blew the engine last week when I was in West Virginia. Tore the engine apart and the connecting rod snapped, camshaft broke, cylinder head is cracked and one valve is toast. I am purchasing a new engine soon. Does anybody know if the 2008 engine will mount and hook up in the 2007 frame. Is it true that it has a little more HP. It is the same price so why not if I can get more HP. Thanks for any help. New to the forum but like it so far.
 

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There shouldn't be any difference as the frames are the same. The '08 engine has a 10% increase in power, but not sure how they got it. If it is fuel delivery, the computer may have been recalibrated for use with bigger injectors.

I am kinda curious if there was a reason for the engine failure.
 
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