[rotorwrench]

The EAB cam was the last one FoMoCo made for the flathead V8 engines. It was designed to replace the 8BA cam to give the cars more torque for those that still had 239 CID. The 8CM cam was desiged for the Mercury 255 to give it a bit more torque. The Mercury cars were heavier than Ford beginning in 1949 but by 1952, the cars were a lot more similar in weight so the 239 needed a boost. The EAB cam was the replacement cam for all of them and Ford had them available for a long time after flathead production stopped. I still find NOS ones now and then.