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Engine Code

The eighth VIN position is the engine displacement and number of cylinders code.

F - 5.0L, DOHC, 4-valve, sequential electronic fuel injection, 8-cylinder
M - 3.7L, 4-valve, port fuel injection, 6-cylinder
S - 5.4L, DOHC, 4-valve, electronic fuel injection, supercharged, 8-cylinder

For more specific engine tag information (build date, etc.). ENGINE MECHANICAL - 3.7L , ENGINE MECHANICAL - 5.0L (4V) or ENGINE MECHANICAL - 5.4L (4V) .