This would be long and hard, but would it work?...
 

I dont pretend to be terribly savvy at working with cars... but i had this idea recently

Take a lightweight car, take out the engine, and mount a small, lightweight v6 or v8 from an outboard boat engine. Small v6s can pump out upwards of 250hps, even 300. i know it would be hell mounting it and attaching the drivetrain etc but could it be done?

Sure it could be done. Money can work wonders. But, you have to think of whether or not it would be worth it.

They have the HP but does those motors have much torque? I have no experience with boats so really dont know but it seems like they wouldnt need much.

a lot of outboard engines are basically nothing more than normal car piston engines, turned a little...

as for you idea, i would reccommend another route. Rotary.

You will be unique, its an amazingly fun engine, very smal (much smaller than even moce tiny 4 cyls) , cheap, and very light. You basically want a small, lightweight go-kart. make it handle well and its a great idea. again, rotary may be you best power/weight and power/size ratios. Worth looking into anyway.


If your looking at 250-300hp v6's though, chances are it will be very expensive, and need a lot of various electrical components to keep it running at that output. Then again, its late and i might be talking outta my ass. ill think it out in teh morning. Sounds expensive to me though