Motorcycle Repair: 1966 Harley Sprint SS, volt battery, h model

Question
Hello.  I am trying to find out what size these are?  We have had conflicting info on it.
Most say they are only 150 but my husband insist it is larger.
Also what is one of these worth?  Anything you can tell me about this bike is appreciated, thanks.

We also need the battery that it takes.  

Answer
Harley made two different models for sprint that year. The C sprint and the H sprint. Both were 250cc.
On the value the C is following:
3775.00  Excellent
2400.00  Very good
1750.00  Good
975.00  Fair
650.00  Poor
On the value of the H model:
3675.00  Excellent
2400.00  Very good
1750.00  Good
875.00  Fair
600.00  Poor

The battery it takes is a 6 volt battery. You are going to have to check around for the battery. They are hard to come by anymore. The part number is 6N11-A
Good luck and happy riding
Mike