Originally Posted by
AbundantMeat
. The only difference between the Mark VIII motor and the Mustang Cobra motor is one of the cams is different, and the intake manifold is different. Everything else is the same.
The cobras also have a forged 8 bolt crank, where the mark has a cast 6 bolt crank. Also the 93-97 marks have heads with standard non beehive valveprings and a small bump in the combustion chambers that shrouds the valves. I have not verified weather the 98-99 mark head has the bump or not.