I have put 10K or so on my bike since the 904 was installed. I haven't had a lick of trouble from her. I switched to Nology coils and wires as well as iridium plugs and pod filters at the same time as the BB. She's even stronger now that she good and broken in. Gas milage is great; I got 45mpg on a 500 mile trip this past weekend, and that is with the 16 tooth sprocket. Get the Big Bore- you won't regret it.
I can really only speak for the 904 though. The bigger stroker kits might be a different story....
Last edited by nuthin; 11/17/2010 2:14 PM.
