470 swap to 4.3L

[mrsemi05]

Re: 470 swap to 4.3L

okay so what would be the best kind of bolt or screw to keep motor in place???? that makes me very happy cause if i had to bolt thur hull i would stop even this project in its tracks

 

[frank246]

Re: 470 swap to 4.3L

With a v6 4.3 engine mount kit (in your case)
These engine mounts bolt on to the side of the block and than on top of the engine frame.
You can see in my picture the raised sections on either side of the frame where the engine mounts rest on and bolt on to.

 

[Don S]

Re: 470 swap to 4.3L

Your boat has stringers of some sort for hull strength, below is a picture of a boat I repowered from a 6 cylinder diesel to a 4 cylinder. The new engine had the mounts in different locations and we had to glass in some new pads for the motor mounts to set on.
The mounts are just lag bolted to the pads with 1/2" Lag bolts about 3" long.

 

[mrsemi05]

Re: 470 swap to 4.3L

yeah im lookin into getting a hole doner boat too. thanks for all the info you guys made me so much more confdent in doing all this work and thanks for the pics that makes it even easier

 

[HT32BSX115]

Re: 470 swap to 4.3L

By the way,


Not to make this a 3.7l bashing party....(there's plenty of that elsewhere), But your worst choice would be to try to rebuild/replace the 3.7L engine.

Since there's still people out there that want to do that, you can part-out that engine(including the 4" heat exchanger if it has it), drive and other components for a fair amount of money to help pay for what you're doing......

Then, maybe buy yourself the right (ratio) SEI drive once you have the engine in and ready to go for a pretty nice package.


Hope you're enjoying Iraq......I think I'd like to go back to Kirkuk and buy a vacation condo!! The weather is pretty nice there this time of year........



Cheers,


Rick

 

[mrsemi05]

Re: 470 swap to 4.3L

yeah weather has been uniform weather the hole winter and its in the 70s now im from MN so im missin the snow. and the motor is good all it needs is a head witch i got a really god price for a new one but i want the more power/reliabity of a better motor so thats where this swap in coming into play but thanks for all the help and im sure ill have pleanty of more ?? when i really get into it and i have been learning alot from all the good info you all leave here thanks

 

[stonyloam]

Re: 470 swap to 4.3L

Ok you have the head, and that is all you need to get the 3.7 running? If that is the case, may I sugest that you forget the whole engine swap thing. I looked into it for my 3.7 and it was WAY too much time, trouble and cost, especially for a 20+ year old boat. The 3.7 is not a bad little engine if you can get it running right. You won't gain that much power with the V6 and you will add about 200 pounds to the back of the boat. Replacing the head is an afternoon's work, while the engine replacement could take half the summer. My advice (for what little it's worth) would be to get it running, sell it and get what you want. In the meantime good luck, and be safe.