What prop comes standard on a 3.0L alpha 1?

[turbodriven]

I've got a 1991 SeaRay 170 (17 foot runabout) and I'm wondering what prop it came with from the factory. The motor is a Mercruiser 3.0l with an Alpha 1 outdrive.

Basically what is be most efficient all around prop diameter/pitch for this size motor and boat size. The stock prop size should be the answer to this.Thanks for any help.

 

[walleyehed]

Re: What prop comes standard on a 3.0L alpha 1?

Depends on the dealer.. could be Black Max from Merc...some dealers put a michigan wheel on them during set-up.
If you're looking for pitch, that changes from 1 boat to another based on loads, altitude and dealer knowledge.

 

[RonM]

Re: What prop comes standard on a 3.0L alpha 1?

My Bayliner came with a 14 1/4" diameter 21p Black Max

 

[walleyehed]

Re: What prop comes standard on a 3.0L alpha 1?

Same boat? same final drive ratio?