Correct Prop Size for KAMD 42s w/ Jackshaft?

[ClassicStile]

Howdy:

Mac and Keith are out of the office....was wondering if anyone has the 28CC with Volvo KAMD 42s w/ jackshafts and DPE drives??

My diesel guy broke one of my props while working on the drives and replaced my props from Volvo with B4's....thinking they are supposed to be B5's or B6's?

Anyone out there know?

Thx

[Valhalla]

B6s are what mac recommends

I called the factory and Mac said B6s. I am considering B5s because of weight and the importance of hitting max RPMs with the boat loaded for a 70 mile run with 4 guys, ice, gear etc.