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Engine & DrivetrainDiscussions about the engine and drivetrain of your vehicle.
This is a discussion thread titled "Engine Difference?", within the Engine & Drivetrain forum, part of the Technical & Vehicle Assistance Forums category.
I believe that all the v8's were called I-FORCE engines. The differences are in the 05 and 06 engines, those engines have VVTI (variable valve timing w/intelligence) and make more horsepower than the earlier motors.
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