How do you plan to connect the bravo shaft to the engines? Are you going to use a bearing carrier?

Marty, thats the plan, but haven't gotten into the complete mechanics of that yet. I'm picking up the drive in a few days, and then I can start laying out more on the box design first. I've seen on some other posts that you have/had an extension box/ drive shaft project of your own. How's it goin?

I use all stellings parts. On the drive flange/coupler I mount a strain sensor and can measure the torque transfered thru it and display it on guages either 0-1000 TQ or HP. I have two done and am working on a third.

I would try someone like Bam or Doller to get a template for a #6. Jo may also have one. He's rigged a few 28'swith 6's. After that you will need to find out how long a #6 is from the input shaft to the prop shaft. You should be able to figure out pretty close to how deep the prop shaft was with those mearsurements.

Then I would take into consideration the weight loss with Bravo's instead of 6's and trannies and go down an inch and then maybe lower it another inch because it was probably set up high for race purposes.

If you get Stellings boxes, and you set it in the middle, you should have an inch or so to play with up or down.

BTW, have you thought about just having the transom filled and recut for Bravo's??????? or are you leaving it cut for 6's for the possible future????

Having it filled and recut would probably cost a lot less than the boxes.