I took two sets of Rick Lance's stainless headers and fabricated water jackets from 3" round tubing, would have been much easier if I had told him to leave the flanges off and make the primary's 1" longer. Building the water cooled up pipes from scratch.
BBC marine bell housing will bolt up to d max and Huber or Bam velvet drive trans, however you will have to have a machine shop build an adapter plate to go between the flywheel and velvet drive flex plate to match bolt patterns and to move the flex plate back enough for the the trans spline to mate up. You'll have to have someone fab up a good copper nickel intercooler and a pretty long list of other stuff. I kind of have to use the d max's, I didn't leave enough room in the engine bay for an inline 6 and the trans. I'm planning on running the long blocks stock at first to get a baseline on performance. Innovation has a military prototype at 550hp. I've ridden with them in their test boat ( old 42' fountain) the d max isn't as strong as their production cummins but still runs an honest 55 mph in a boat that was never intended to run a single.
BBC marine bell housing will bolt up to d max and Huber or Bam velvet drive trans, however you will have to have a machine shop build an adapter plate to go between the flywheel and velvet drive flex plate to match bolt patterns and to move the flex plate back enough for the the trans spline to mate up. You'll have to have someone fab up a good copper nickel intercooler and a pretty long list of other stuff. I kind of have to use the d max's, I didn't leave enough room in the engine bay for an inline 6 and the trans. I'm planning on running the long blocks stock at first to get a baseline on performance. Innovation has a military prototype at 550hp. I've ridden with them in their test boat ( old 42' fountain) the d max isn't as strong as their production cummins but still runs an honest 55 mph in a boat that was never intended to run a single.
And here I thought these diesel trucks were stupid expensive.