Is there any numbers anywhere on a stock OEM 1966 289 cam to identify it? I have a cam timing problem with a recently rebuilt 289 engine. The timing mark is under the driver side lower radiator hose when the engine will run. It has the mechanical timing chain/gear locations properly set. No, it is not a slipped damper ring or the wrong damper. (Two new dampers and several used stock OEM older dampers all have identical timing marks in relation to the crank key). I think that the cam is...

66 mustang stock cam ID