We extend to you a cordial "WELCOME ABOARD !" Come on in, make yourself at home, we are a friendly group of enthusiasts, and we also appreciate the classic Chris Craft Roamer, Corsair, and Lancer boats too , as they are all on the same family tree and share much in common !
The 427 was designed for one purpose and then it was adapted to other uses such as boating. The initial automotive racing (spelled NASCAR) required a lightweight, very strong block that would run at WOT for 500 miles or more. The design Ford came up with, big bore and reasonably short stroke, got the job done, and with the cross bolted mains and all of the other reinforcing this block received allowed it to run at very high rpm. Adding a larger stroke moves away from the intended use of the 427 in an industrial direction, which makes some sense for boating as the rpm will be lower and the longer stroke can produce more torque. I understand drag racers like the longer stroke too but their use of this motor is generally in the 12 second or less category at WOT and not for 500 miles or as the case of LeMans, 24 hours at WOT. Since boat motors do not run at WOT for long and never approach the rpm of an automotive racing application, the stroking could produce an even better marine engine, if you can believe that. It would be quite fascinating to see the torque curve on the dyno, please share this with the group if and when these numbers are known.