Also the end of the port body has been radiused to help improve airflow towards the intake valve. Can be used with alch. or nitro engines. Port body threads are 1/8" NPT, top of body where jet goes is -3 AN and easy to install with a 7/16" hex.
From the ball nozzle end to first thread is .500" and from first thread to end of nozzle is 2.080". Overall length is 2.585". Nozzle body is designed to work with Crawford or Waterman drop in nozzle jets.