Mercruiser motor swap

[jasonburba74]

I was wonder if it is possible to swap motors in a 2008 Tahoe Q7i boat. I currently have a Mercruiser 4.3L and I would like to replace it with a Mercruiser 5.0L. Will the Tahoe boat be able to handle this size motor?

 

[Scott Danforth]

should be easy. however the boat is nearly 21 feet long. go with a 5.7 if you are sticking to Gen 1 SBC motor over the 5.0

@Scott06 did a similar swap with his boat.

 

[alldodge]

Moved it to Merc from FAQ area

 

[Pmt133]

I agree with Scott, no one ever wished they had less power. And when a 305 and 350 are the same size and weight why wouldn't you. Obviously if you already have the 305 that could do it....

Probably going to have to build engine mounts unless they left them long enough for the V8. Some do, some don't.

 

[Chris1956]

You might look up the weight of the V6 and V8 and see the difference. I expect it to be nominal. You might ask the experts if the motor mounts will match