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What is the original motor for an 1986 Pontiac Firebird?

The 1986 Pontiac Firebird came with several different engine options, so there's no single "original" motor. The choices depended on the trim level and options selected. Common engines included:

* 2.5L Iron Duke (4-cylinder): A base engine option.

* 3.0L V6: A more common and popular choice.

* 5.0L V8 (small-block): Offered in various horsepower configurations, depending on the specific model and options.

* 5.7L V8 (small-block): A more powerful V8 option, often found in higher performance models.

To know the *original* engine for a *specific* 1986 Pontiac Firebird, you'd need to check its vehicle identification number (VIN).