ns40c which other makes props will fit? prop size help

[jetties2003]

i have a 1957 14 aluminum starcraft skichamp with what seems to be a heavy mahogany interior. i put an 87 nissan ns40c on it that currently has a 10.5 x 13 aluminum prop. the boat almost seems to run at mediocer speed with just me in it but it is still boggy and really bogs or slows with each person i put in her. my mechanic and i have checked the motor out and all seems well. we suspect the prop. no rpm gauge. we tried hes little electronic rpm deal but it didnt work. he says the rpms are way low. its a 15 inch transom with a bobs jackplate 4" set back. 25" motor. i will be trying to increase rpm tomorrow by raising the motor an inch. what manufactures props will fit and does it seem like a 10.5x9 is too low of a pitch...... thanks runnin low on the whole finishing the boat resto and trying to do this right the first time. thanks

 

[Bondo]

Re: ns40c which other makes props will fit? prop size help

25" motor.

Ayuh,... A 25" motor on a 15" transom is a Problem all by itself....
Especially on a serverely overloaded hull...

 

[steelespike]

Re: ns40c which other makes props will fit? prop size help

Does the motor measure 25" from the anti vent plate(just above the prop) to the part that sits on top of the transom?If its a long shaft that measurement would be about 20".25" would be an extralong.I don't think its available but don't know for a fact.
The right height the antivent plate should be about even with the bottom And could endup about an inch above. Get that setup right and let us know what you get.