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Stump Shot

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First off.....there is no 400M.

In 1971 Ford built the 400 as a tall block Cleveland engine. Then, they destroked it to create the 351M.

Same block, but two different displacements. Saving money was the goal here.....while also replacing the FE engine.

The 400 has the longest stroke of any Ford engine ever built, and is capable of making stupid amounts of torque at low rpm.
Speaking of FE's and sleeper engines, there should be a good supply of 360's lying about. The later ones were underpowered from smog regs, but if built to say 1970 specs and tuned to 1966 specs, make for a fine torquey truck engine.
Speaking of torque, the 472 and 500 Cadillac engines made gobs of it and really made an excellent light truck engine. A buddy had several conversions over the years, and they performed pulling and hauling very well.
 

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Speaking of FE's and sleeper engines, there should be a good supply of 360's lying about. The later ones were underpowered from smog regs, but if built to say 1970 specs and tuned to 1966 specs, make for a fine torquey truck engine.
Speaking of torque, the 472 and 500 Cadillac engines made gobs of it and really made an excellent light truck engine. A buddy had several conversions over the years, and they performed pulling and hauling very well.
We have a 360 in Bubba's high boy. And what I think is an industrial 370 in a parts truck. It has a 5 speed granny transmission behind it.
 

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All I know is that back in the early 80's when older vehicles were ripe for the choosing for a young person with a few hundred bucks in his pocket, every last one said the same thing, 351M-400 and I never knew what the heck it was. If there was a different engine sticker, I never saw it.
What I did know for sure was they were thirsty sluggish pigs that were fixing to let their innards loose, and even if we knew of all the wonderful fixes for them back then, it would not have been financially feasible at the time, when perfectly good big block engines and transmissions were plentiful and dirt cheap to obtain and easy enough to swap out. Another thought, once converted, the now big block truck had cred where it did not before. All the splaining in the world back then wouldn't have changed a single mind about a truck with a less then desirable engine package in it. Which left all those engines waiting about for today's rodder to mess with and no one thinks any less of it either.
If you just had a Chevy you wouldn’t needed so many engines and wasted weekends
 

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We have a 360 in Bubba's high boy. And what I think is an industrial 370 in a parts truck. It has a 5 speed granny transmission behind it.
361FT Maybe? The 370 Was like a 429 I believe if memory serves. The 5 speed was definitely from a larger F series truck.
 

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We have a 360 in Bubba's high boy. And what I think is an industrial 370 in a parts truck. It has a 5 speed granny transmission behind it.
The 360 would have been the original engine, they all pretty much were as far as I know.
You can look up the vin codes to see what the truck was built with and decode it with a repair manual.
 

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The 360 would have been the original engine, they all pretty much were as far as I know.
You can look up the vin codes to see what the truck was built with and decode it with a repair manual.
lol what’s a repair manual when you did it every weekend ?
 

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Maybe. Have no idea how to tell.
361FT will look just like a 360FE but with a four-barrel carburetor instead of the two-barrel. If part of the intake manifold is covered by the rocker cover, that's an FE/FT engine. The 370 is the spitting image of the 429. Both cam in F500's and such just in different years.
 
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