[KULTULZ]

Originally Posted by 56sedandelivery

What tips you off other then it is a resto-mod. The price being high for that or what?

There were two tales of a '1956 FORD S-CODE' (Engine Code), one being its' having a 368 LYB POLICE ENGINE and the other (the one described above) as being a limited production 312HP. Neither story is true.

There was a long thread here some time ago.

EDIT-

1956 FORD ‘S-CODE 368’ TSB 366

I had heard of the same story of the 368 engines being in the 1956 cars with the letter "S" in the serial number however when reading the TSB's (Technical Service Bulletin) from 1956 found something different.

In TSB 366 dated 8/6/56 there is a paragraph about the "S" code cars.
Para D*2

312 Cubic Inch eight-cylinder engines - 1956 Fairlane, Customline, and Mainline Models

We have been advised that approximately sixty-five 312 cubic inch engines with automatic transmissions and four hundred and fifty-five 312 cubic inch engines with standard transmissions have been used in 1956 Fairlane, Customline, and Mainline models in place of the 292 cubic inch engine with the four-barrel carburetor.

Since these engines were shipped with the regular passenger car decals on the rocker covers it will not be possible to identify them by this means.

The identification of such 1956 units with these engines in this case is made by the letter "S" in the vehicle serial number and a daub of yellow heat resisting paint about two inches square on the forward portion of the engine.

SOURCE- http://forums.y-blocksforever.com/Topic46286.aspx

There was also a magazine article many years ago showing a guy's '56 FORD and it had a 368 and was an S-CODE car (or had an S-CODE PATENT PLATE). Very convincing.