v8 V8 swap

[Taylor9995]

I have an 89 automatic base model i6.

She is pretty much stock as of now, I'm looking for ideas or suggestions in transitioning to a  V8. This is my first project I have ever worked on so needless to say I'm a little green on the subject. I would say my end goal would be a pretty mean off road machine. Thanks for the help! I'm open to any and all suggestions! 

[mnkyboy]

Personally, i would spend the time and money elsewhere on the truck, the 4.0l is plenty of engine to get started.

 

Once you have a built rig with axles and such to support a V8, swap one in if the 4.0l isn't giving you the power you're looking for.

 

[Pete M]

peruse the Epic tech forum to get ideas of the paths you can take.      Be prepared to kiss the rest of your drivetrain and your wallet goodbye.   oh, and do not skimp on cooling.  

[Darren]

I agree with what mnkyboy says, because he’s much smarter than me. The 4.0 is a great motor, keep that and spend your time and money turning the rest of the truck into a “mean off-road machine”. 

[Taylor9995]

I think I will keep what I have. The origanal motor is said to have some 400,000 on it (if previously rebuilt I have no idea of when and to what extent. Is a rebuild worth it or should I go with a similar sized engine? The miles are what prompted the swap mind set however I agree in that I should focus on what I have rather then change the while drivetrain. Thanks for the help!

[Pete M]

I would run a compression and leakdown check before jumping to the assumption that the engine is bad.  these things run forever if cared for.