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Old 07-19-2011, 10:29 AM
  #384  
Grinder
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Originally Posted by TommyBlazin
wow, this thread been in active for a long time, if there's a new one for the on-road motors please re-direct me there...

are the c9 c10 c11, the same, and more or less 35 plus 21's? thanks
The c11 is the better of the rb's you listed. It has a better piston material, and more rigid block than the older models. The rb is different than the 35+21. It has more crank timing, lighter crank, different block. The Rb has more top end than the 35+21. The 35+21, and Rb parts are not interchangeable without modification.
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