Hey there, not many Chrysler people left in boats, I have seen a few SB Chrslyer's in jet form 360's and only one BB mopar. I have a 23' Sleekcraft Executive Jet, It came with a 454BB chevy. Work has been ongoing for the past five years and manage to get a good season out of it. Last year's mod's were a 540BBC and an AMT SD-309 pump set-up. She turns 5400rpm's with a AA impeller and is currently running right at 70mph. Good luck on your boat, best reguards, Chuck