ExplorerExplorer
Adventurer
The ECM isn't such a big issue unless you want everything to work in a stock jeep platform. If you can use mechanical gauges and don't want cruise control type stuff I think the stock Bosch ECM controlling the VM motor can be run independently.
In the TJ platform its really hard to get the ECM and FCM to talk to the TJ gauge cluster. Wiring and control for the 545 auto is also a nightmare.
If you could source the flywheel you needed and ran a manual transmission like the nv3500 it could be pretty easy.
Yes, go with the 4.07 Sprint. If you are serious about it I would be willing to help source two or more to share on shipping fees. I had a contact at International South America at one time. I was close to being able to get a complete motor from them direct. I still think it would be cheaper to just buy a few out of wrecked S10s in Brazil. It might even be worth the trip down to pull them yourself and crate them up. That is what I was thinking....
Yeah, I was thinking it would probably be real easy to fly down there, and pull the drivetrain and crate it up and ship it back to the states... Importing isn't a problem since it wouldn't be a complete vehicle correct? I'm sure it isn't hard to find several wrecked S-10's around there... What's the specs on that engine? I know the new CR one is a nice power package, but all mechanical is a real benefit...