Good platform for high-HP motor swap.

elwesso

Cadet
Joined
May 16, 2007
Messages
11
It has been my dream to swap one my beloved motors into a boat, however I dont have the boat yet so im debating on what would be the best.

Basically Im swapping in a Nissan V8, im not worried about getting it to work, I am wondering how it would be easiest... I am accustomed to inboards, whether they be V drive or direct drive and I dont really have much experience with stern drives.

This motor does not bolt to any marine gearboxes so im going to have to make it fit regardless...

Lets say for the sake of getting started that im going to be running about 400HP and im hoping to see 70MPH in whatever I use.

Questions..

1. Would an inboard setup work better or a stern drive? I dont know how stern drives attach to the motors, i woudl assume it has a bellhousing similar to an inboard setup. If stern drives only connect to the motor using the shaft/U joint coming off the back of it then that might be easier.

2. What kind of hull design would be good? I have access to a bunch of older cobalts, whether it be a single hull or a tri-hull design, just something thats going to be stable at high speeds.

3. can stock stern drives handle that kind of power?

Thanks for the help... :) Youd think being around boats my entire life Id know this stupid stuff but ive not been around stern drives enough.
 

elwesso

Cadet
Joined
May 16, 2007
Messages
11
Re: Good platform for high-HP motor swap.

thank you very much. I posted in the IO forum, im stupid I didnt even see it there.

Thanks again!
 
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