I knew two 2.5s both had catastrophic head problems
I also knew a 2.8, but it was auto. Absolutely useless, whenever you tried to use the torque of the engine it would kick down a gear and start revving high where there was no power! Resulted in being far to slow for a 2.8 4x4!
If I were personally going for one it would be a 3.0 with a LPG conversion :thumb2