There is absolutely ZERO benefit to run the 2.3 Ford. It is heavy, too long, not really a powerhouse, more like a boat anchor. You would be much better off selling it and getting a 1.6 and adaptor kit to put that in. Plenty of power and less than 20 pounds heavier than the stock 1.3.
obviously never seen a 2.3 turbo on 20psi
Seriously now...
The 2.3 is a great engine. Tough. Easily Turboed. Great power. LOTS of aftermarket performance parts.
Unfortunately, two things kill it as an engine upgrade:
1 weight. Samurais are killer on the trail because they are lightweight. They may seem to be underpowered with their aluminum-block engine but they are not. The extra weight does not help improve their handling - just their ability to spin their wheells.
2 Installation woes. As pointed out earlier, it's a "beeach" to fit under the hood.
Okay, 3 It's no longer a Samurai. Samurai owners are cheap wheelers. Most of us are modders up to a point, then we rely on the basic design of the truck to hand out the whup-ass on the trail.
Aside from the 4.3 V-6, the only other major engine transplant that people do - and a LOT of people do it - is the VW Diesel swap. Sure it's heavier than our aluminum babies, but it easily fits under the hood AND it delivers torque - not HP - which is what you need on the trail.
Finally, dreams are a wonderful thing! I am working on an amphibious truck built with a combination of Suzuki and Detroit parts. The Ford 2.3 is one of the engines that I am considering! Just remember to weigh whatever choice that you make in your dream vehicle against practicality, function and your ability to finish the project.
My dream may remain just that - a dream.