As it turns out the 1965 Ford F350 is a 1966 Ford F350. The data tag that was found in the glove box (formally riveted to the driver's door) confirms via the warranty number a June 1966 man. date for a 1966 model with a 352 engine. The engine data tag (mounted under the coil) states a 352 engine with a man. date of June 1966 for a 1966 model truck. I feel comfortable saying the engine was originally in the truck. I had misread the side emblems to read "Ford" OVER "360", when it fact they read "Ford" OVER "350". The data tag confirms the current color was also original, as is the transmission. I have yet to translate the "DSO" number on the door tag. I understand it to be indicative of dealer customized options - or "special order". Short of the DSO number providing "special order" information - The only issue of parts with having the truck 100% back to original condition is the Dana 70 4.88 rear with 6 bolt on a 7.25" pattern axle for the rears.
Quick note about "options" via special order - I just love the FOMOCO "push button" pump mounted on the floor that allows the driver to pump air into the washer reservoir (a douche bag looking thing mounted on the wheel well) forcing cleaner onto the window.
I re-wired HOT wires, replaced the starter, solenoid, plugs, plug wires, rotor, distributor cap, points, condenser, fuel pump, and rigged a temp. fuel line from a fuel container............changed the fluids throughout........gave it a breath of starter fluid, and BAM - she busted right off never hesitating. Little makes me happier than to bring something left for dead back to life. I had forgotten how much I love the sound of a big block engine.
I've found two issues related to the engine - 1) a every so small leak in a tube within the radiator, and 2) the occasional spit/sputter that I suspect is directly related to a partially plugged low-speed jet on the carb. - I have a rebuild kit for the carb on order.
I have now stepped away from the engine to focus on removing the body work so that it may go for repairs and paint. Overall, the body is very solid with just a couple of areas that will require patching. It would be very easy to put this truck on the road and drive it as-is, but I really want it to be fully repaired, looking as original, and dependable. Once the body is in a shop I plan to turn my focus on the frame and brake system.