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Original Message
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| RE: 72 Wagon |
| By Styleline58 - 07/27/2001 3:31:49 PM; IP 63.86.138.11 |
There is no such engine as a 400M.
The M designation was given to the 351M, which is a destroked 400 that was introduced in 1975. The 400 was introduced in 1971, and it is a tall-deck version of the 351C. The 351C-2V, 400 and 351M use the same heads. Ford never use an "M" with reference to the 400. Ford did not make another engine with the same displacement as the 400, so there is no need to identify it in any other way than "400". Too bad the hacks at the ragazines did not understand this, cuz now everyone feels the need to add M to an engine that never had on there. It just causes confusion.
The 400 uses larger main and rod journals than the 351C, but it's design is very similar. It does use the 429/460 bellhousing bolt pattern, so any C4 or C6 found behing a 400 or 351M will bolt to 385 series engine. The moto mounts are unique, but since the 429 was offered in the mid- and full-sized cars, you can buy the mounts. The 400 crank is often machined to fit in a 35W for stroker kits.
The 400 always suffered from a small cam, small carb and low compression. Add compression, Cleveland cam and a 4V carb and headers and they build a lot of power.
There was a special 400 block cast in 1973 with a small block bellhousing bolt pattern and small block motor mount bosses. They were equpiied with the FMX trans, and are hard to find. |
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