will my 1979 sportster motor and trans fit in any hardtail sportster frame ? In other words are the motor mounts the same on my motor as say 1972-1978? Thanks Mark

 

Check here and see what Paughco has. The frames are in 3 "eras", if you will: 1957 - 1976, 1977 - 1985, and 1986 - 2003.
http://www.paughco.com/2008-catalog/pages/04-00.html

 

Man, what a resource!!!

 

Thanks what a great resource this forum is............Mark