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Can most 1987 mustang 5.0 L engine parts fit thunder bird coup L?

Most, but not all, 1987 Mustang 5.0L engine parts will fit a 1987 Thunderbird Coupe with the 5.0L engine. The major components (block, heads, internal parts) are largely interchangeable.

However, there are some differences to watch out for:

* Exhaust manifolds/headers: These are often specific to the vehicle due to differences in chassis and body mounting points.

* Accessories: While the alternator, power steering pump, etc., might be the same *type*, the brackets and mounting points might vary slightly, requiring some adaptation or the use of Thunderbird-specific parts.

* Wiring harnesses: While the engine harnesses themselves are similar, there may be differences in connector types for sensors or accessories, especially if you have emissions controls.

* A/C components: These often have vehicle-specific brackets and lines.

* Transmission: While a 5.0L Mustang and Thunderbird may use the same transmission type (e.g., AOD), the bellhousing bolt patterns might differ slightly, necessitating the correct bellhousing for the specific application.

In short: While you can likely swap many 5.0L engine parts between a Mustang and Thunderbird, always double-check part numbers and compatibility to ensure a proper fit. Using a parts catalog specific to each vehicle (Mustang and Thunderbird) is highly recommended. Otherwise, you might find yourself needing adapters or making modifications.