This vintage cylinder head is a perfect addition to any racing enthusiast's collection. The B R 9 head may fit Hodaka, Yamaha, Suzuki, or Honda, I DON'T KNOW.  DON'T KNOW IF THIS IS A DG HEAD.  air-cooled engines. The head has 3 fins that have been cut.  It has knicks, scratches, dirt, & oil.  LOOK AT THE PICTURES.  Its 2-stroke engine type ensures a powerful and speedy ride. The cylinder head is designed for racing purposes and is in good working condition.