4 to V6 conversion .

[tuna troller]

Hi,
I have a 91 bayliner Capri 18.5’ with a four cylinder 3L in it. My leg is a cobra SX CT-1, 1.97ratio.
I’m entertaining the idea of a V6 vortec swap if this is doable ?
This is the first time doing this on a boat, so not sure what I’m getting into. Any help would be great !
regard

 

[Bondo]

if this is doable ?

Ayuh,..... Only as a Pulleys to Prop swap,...... nothin' there now is usable, nor desirable,....

 

[tuna troller]

Ayuh,..... Only as a Pulleys to Prop swap,...... nothin' there now is usable, nor desirable,....

whaaaat ......

 

[alldodge]

Would be best to do everything (pulley to prop) motor, transom assembly, outdrive
Would need to remove old front motor mount and install new side mounts. Should be able to get away with keeping transom assembly if its usable. Doubt you can keep the outdrive because at 1.98 there may not be a high enough pitch prop to use.

 

[Scott Danforth]

Unbolt the 3.0 from pulley to prop. Bolt in V6 pulley to prop. If you change brands, you may also need controls

 

[tuna troller]

Thanks all.