The engine family was not a success and few were produced.

In 1968, Ford brought out a completely new engine family called the 385-series.

This engine family was updated in 1968 for the use of 2.45" medium-sized journals.

The company introduced a larger engine family to replace the "Nailhead" in 1967 and was produced through 1976.

The engine family known as the Quad 4 was debuted to the public in the spring of 1987.

This was known as a transitional year for the engine family.

A new V-12, part of the same engine family, will arrive next year in a 2003 model, the 760Li.

Years of development has built an extensive engine family.

Note: using a later head of the same engine "family" isn't a true hybrid, but mere modernization.

The engine family can be broken down into three sub families: