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2014 600RS- 2009 800R Top end?

800r 600rs cylinders 770

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#1 MatthewW14

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Posted 13 April 2019 - 11:11 AM

Hey , 

 

 I know this topic has been beaten to death and I did doo a search for 800r in this section; read about 20 pages and most of them were referring to 800r swaps or 800HO cylinders for a 770 build. My question is will 2009 800R cylinders work for the 770 build or they have to be 800HO? 

 

I have a 2009 800r Motor with the stator, Carbs, Reeds, and Y-Pipe. Everything else is sold. I also have a line on a 2014 600RS for a good price and just wanted to explore my options. I know I can drop the motor in, make some modifications and run the 800r with the 600rs electrical but the 770 build is more appealing to me. 

 

Thanks for any insight provided. 



#2 Jcstacey8

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Posted 21 April 2019 - 08:17 PM

Are the 09 cylinders mono block? If so they won’t work on the Rd crank cases as they are for 800ho cylinders once the case has been opened up for the larger boar

#3 MatthewW14

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Posted 22 April 2019 - 02:43 PM

Thanks- Yes they are Monoblock. Looks like I'll be selling the 800r engine and looking for 800HO cylinders. 







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