[51 MERC-CT]

Originally Posted by koolman

51-MERC-CT,

It is an Offenhauser for the latter block. The engine was rebuilt before I bought it. The push rod is new, pump and stand are old. Are the 8CM and 8BA pumps interchangeable?
DK

The 8BA pump will work in place of the 8CM double pumper. ( that's what I use)
Something to try- Turn the engine to #6 cylinder TDC. Lining up the rotor to the cap is close enough (this puts the fuel pump pushrod at it's lowest point making it easier to install the pump)