You would think that where ever or who ever you got it from would know and would have factored that into the selling price.
Dyno it and the proof will come out.
well i bought it from the local harley dealer. would it tell me honestly the only reason i care is it needs to be tuned because its popping out the exhaust on decel and between shifts and all the tuners i've looked at need the info.
ok i have an update the 103 cover is just that a replacement cover. i was able to get a boreoscope and checked the piston tops for part numbers and found it is a 96 inch motor.thanks everyone for the help.