Whoa, wouldnt have guessed from the picture!Crank centerline to the top of the engines are within an inch of each other.
Either way, as many people on many forums said before, the old 813 is a bit underpowered for modern day driving. But then I couldnt live with myself without that sweet sweet sound of the massive v12. I put single straight 3.5 inch stack on it with open muffler from a racing truck. When the engine has to work (ie. put the trailer behind) it sounds like singing angels