I admit I am no vintage motor guru, but today I came across a unique flathead. The motor is between the frame rails of a 50's vintage Ford F-7. It is a single axle truck with a fifth wheel on it. Under the hood is a flathead but the distributor is in the back of the motor. It does not appear to be original since the cab was cut to make room for the vac. advance and hose. There is the normal oil filter on top, the coolant lines off the front of the heads into the rad. and a generator. I could not get pictures or #'s off the motor, there was a huge yellow jacket nest under the hood. I will clean off the heads and take pictures this weekend. Was there a specific truck only motor? Was there a retro-kit back in the day? The distributor is offset to the drivers side of the motor, not tucked in behind like a SBC. Dont get out the popcorn and beer just yet. I don't get much time on the web, but I do check in daily. Thanks for your interest.