Im helping out a friend sort out a 67 rt dana car stick. the build sheet calls the engine an (83) which is 440 4 bl hp. the block was a 66 with an C on the pad not an hp. I know this car from 67 I don't believe this block was ever change. its original to the car. does the C stand for commando engine? would Chrysler put a 66 block in a 67 car out of the factory. The other confusing engine code on the build sheet calls it a 449. could that be an over bored 440?? the door tag calls for an L engine as well. any one familiar with the decoding.
Thanks