Dodge Raider / Montero question...

[jjjtronics]

We have a 1986 Raider, 5 speed, 4 cylinder.
This little 4x4 has been so reliable, and so much fun, that I will like to keep it forever. I have plans to get it repainted, and make it look good again. My kids grew up with this truck, which they call "La Servi", because the side/rear windows open like a Fast Food Servicar Window. We used it for years to haul our dirt bikes, go camping, go to the beach, etc. We have great memories with this truck. One time, coming back from a basketball game, I took the whole team on it, they still remember that day as one of the most fun days they ever had. 14 crazy and fun kids, plus me, on a Raider, I still remember how much they laugh and scream from the cramps.
But, the engine is so weak, that I will like to swap it with something better.
I have seen V6 Raiders, but all are automatics. I understand the V6 was never an option with the manual trany. I have heard about engine conversions, but can`t find anything on the Raider/Montero. Any Ideas ?

Juan