Valve covers are mid 60's FE, FT engines used them into the early 70's. I had a chrome set designed like that on a 66 390 GT engine
FE engine came out in 58 but the FT version wasn't installed in MD trucks until 64/65.
No way to tell what size the engine is without measuring bore and stroke.
As I said before all 391's came with 4 barrel carbs, most likely it's a 330 or 361.
Worked on several of those engines over the years, the local mill I worked at still has a 71 LT-800 391 4v 5x4 trans tandem axle they use as a yard dog to move trailers around.
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Today's Featured Article - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
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