cylinder head interchangeability

Discussion in 'Engine, Fuel and Exhaust' started by muttblbc, Apr 26, 2010.

  1. muttblbc

    muttblbc New Member

    need to replace the rear cylinder head on a 77 1000cc sportster iron head, and was wondering what other year heads will work, and if i can get away with using a 900cc head without having to modify anything to much