What motor do I have?

[pinko]

I just recently bought an '07 Summit X from a dealer and they told me it had the updated motor in it which I believe is the "R"? I thought that motor was supposed to have an R stamped on the base next to the torque stop but I don't see it on mine. Am I looking in the right spot?

 

[8rmk00]

i think that stamped R was only on the 08 800r's and some some updated 07. if there is no r i think that means it is just an 07 800r bottom end