I watch the Revolution Performance you tube videos and was going to ask them about stock CVO engine parts but Smitty, it looks like you may have answered that in your signature. I'm wondering if there are any engine parts in a stock 110 that are found in the SE catalog. Since you've listed specific parts with SE I'm guessing that our engines use plane jane parts and not hi-zoot stuff in the SE catalog. I was hoping that a lot of stuff would have been included but maybe not. So what about the 120R, does those use better rods, crank, lifters, pistons, heads etc. I'm tossing around the idea of building a 124 but will H-D sell you just the case without turning in your old cases? Like can I purchase case # 24601-10a and flywheel set 23893-10a and build from there. It would be cheaper to buy the complete engine but I'd still want to have it balanced, welded and blueprinted and wonder about cost savings on having a 120R sent to a shop like Rev Perf etc or send component parts? Probably close either way I guess.