2005 Mustang Engine Information – 244 cubic inch V6 (4.0L Ford Cologne V6)

The Cologne V6

The base Mustang did away with the wheezy 3.8-litre overhead valve V-6 in favor of Ford’s more powerful and freer revving 4.0-litre single overhead cam “Cologne” V-6 that had been introduced in the Ford Explorer in 1997. This new engine used a 60-degree cast iron block with a 3.94-inch bore and 3.3-inch stroke. This overhead cam engine was based on the rugged 4.0-litre “Cologne” overhead valve V-6 and therefore shared the same engine block.

Ford used a clever timing chain system to drive the camshafts in each cylinder head. A jackshaft was installed in place of where the cam resided in the overhead valve version of the engine. This jackshaft was used to drive the camshafts in the left and right cylinder heads. The timing chain for the left bank was located in the front of the engine while the chain driving the right side cam was located at the rear of the engine and a third chain at the front of the engine connected the jackshaft the crankshaft.