duo prop advice

[goincrazy]

Hello all I have a 23 ft stieger with a 3.7l volvo penta and a volvo duo drive the boat is ocean used what F series props are best F5 or F3 I have an opportunity to buy a set of F3s is there a big difference I prop dealer said stay with F5s any advice would be appreciated

 

[Scott Danforth]

volvo never made a 3.7 liter

do you mean 5.7 liter?

what props are on there now. unless you change how much power the motor produces or the drive gear ratio, pretty sure you cant jump between F3's and F5's

 

[goincrazy]

sorry its a 4.3l gxi

 

[QBhoy]

almost certainly...the props it came with are the best suited. unless this has been a re power or a drive change from new.