Mopar Mallory Distributor ID help

I've got an old Mallory YL Mopar distributor but I'm not sure of the application. It measures 3 1/2" from the base of the mounting flange (where it meets the engine block) to the tip of the shaft. Can anybody help? Thanks. Rick

 

Sounds like a 'B' engine (low deck - 350,361,383,400) distributor. Does the rotor spin counterclockwise? If so, that is it without a doubt.

 

Thanks...you are probably correct..I bought this and wasn't sure. Thanks. Rick