This is a single barrel Stromberg Carburetor and fits the following: 1948 to 1963: Fits all Holdens running the Grey Motor (132ci and 138ci engines). 1963 to 1973: Fits all Holdens running the early Red Motor (149ci, 161ci, 179ci, and 186ci engines). 1973 to 1976: Fits all Holdens running the mid-era Red Motor (173ci and 202ci engines). 1976 to 1980: Fits all Holdens running the late Red Motor or early Blue Motor Please Check Photos It is untested