Join Date: Aug 2001
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Re: 4.3L V6 Engine Swap
If you have the 4 dinger in the YJ then you have an AX-5 transmission. And there is no real point in trying to make it work with the added power of a V6. It may work for a while, but in a matter of time it will start to fail. That time won't be long if you are running larger tires. To do this swap you are going to need an adaptor or two. You could get a GM transmission, and then get an adaptor to your Tcase. That way you could get a new motor, and trans, and keep your 231, and you would only need one adaptor. I think that with some homework you could posistion the 4.3 in such a way that you could use your driveshafts.
I am also glad to see this topic come up. The 4.3 is a good motor that has about the same performance #'s as the 4.0 I6. But the 4.3 is much cheaper. Because so many people want the 305,s [img]images/graemlins/smile.gif[/img] and the 350's [img]images/graemlins/cool.gif[/img] The little 4.3's never bring much demand, and the price is alway pretty good.