modular motor?

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Yes. The block shares the modular family's bore spacing and deck height (of the 4.6) and can thus be machined on the same assembly line.

If I recall the ability to machine and produce this engine using existing tooling -- a hallmark of the "modular" family -- was a paramount requirement during the planning phases of the Coyote engine program.
 
Yes. The block shares the modular family's bore spacing and deck height (of the 4.6) and can thus be machined on the same assembly line.

If I recall the ability to machine and produce this engine using existing tooling -- a hallmark of the "modular" family -- was a paramount requirement during the planning phases of the Coyote engine program.

You are absolutely correct.

Modular - name which was derived from a manufacturing plant protocol, "Modular", where the plant and its tooling could be changed out in a matter of hours to manufacture different versions of the engine family

Fords modular family includes the 4.6L (2V, 3V, 4V) motors, the 5.0L (Cammer & Coyote) motors, the 5.4L (2V, 3V, 4V) motors, and the 6.8L V10 (2V, 3V, 4V) motors. These motors were not only used in Ford vehicles but in Lincoln and Mercury vehicles as well.
 
They may be in the Modular family, but they have little in common with earlier Mod motors other than basic dimensions and the bellhousing bolt pattern, and the basic philosophy of the design, some of which necessitated by the requirement to be manufactured on the same tooling as the Modular. The only part that is compatible is the connecting rods. 1991-2010 4.6L and 5.4L 2V, 3V & 4V Modulars can mix and match parts all over the place.

The Coyote 5.0L is to the 4.6L as a GM LS is to a Chevy 350.