Set of 4 fuel injector billet aluminum bungs can be retro fitted to many different manifolds and used for fitting fuel injection to a wide range of engines.
The screw in spigot section of the fuel injection boss is 17mm long with a thread length of 11mm, the body length is 32mm giving an overall height of 50mm. The diameter of the round section is 26.5mm and where the flats are machined on the sides is a width of 20mm. These will suit GM style 14.2mm GM Commodore type injectors. External thread on cup is 1/4 NPT