For more I do about the swap, see the below article. There is a lot more info in the 4x4wire archives about the 4.0 engine

http://www.4x4wire.com/jeep/tech/engine/fi40swap01/

As for obtaining an engine, check your local boneyards for wrecked jeeps. Check AutoParts Wharehouse or othe on-line parts houses for rebuilt crate engines.


John Stewart
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