When did the 4.6 liter engine come out in fords?

There's no single definitive answer to your question about when the 4.6L engine came out in Fords, as there have been several different 4.6L engines over the years with distinct characteristics and applications. Here's a breakdown:

Ford's 4.6L V8 engines:

* The original "Modular" 4.6L V8 (1991): This engine marked the beginning of Ford's modular engine family. It was first used in the 1991 Lincoln Town Car and was available in many Ford models thereafter, including the Mustang, Crown Victoria, and F-Series trucks.

* Later versions: There have been numerous iterations of the 4.6L V8 throughout its history, including the 2-valve and 4-valve versions, with different performance and fuel economy characteristics.

To get a specific answer, you'll need to clarify:

1. What Ford model are you interested in? Different Ford models used the 4.6L engine at different times.

2. What kind of 4.6L engine are you looking for? (2-valve, 4-valve, specific model year, etc.)

For example:

* To find out when the 4.6L V8 was introduced in the Ford Mustang, you could search for "1991 Ford Mustang engine" or "Ford Mustang 4.6L engine history."

* To find out when a specific version of the 4.6L engine (like the 4-valve version) was available, you'd need to search for something like "Ford 4.6L 4-valve engine history."

I hope this information helps you find the answer you're looking for!