As I've been doing the research for quite some time now. The first thing is that you should have the correct RAV4.1. Which means, no AWD nor 4WD. As some RAV4 members have stated, the 2WD is a lot better then the 4WD/AWD. All the added hardware from the AWD/4WD makes the V6 engine a lot more complicated. So keep it simple and easier to work, do the 2WD RAV4.1.
Which engine to use? Well, that is up to you. I'd advice to go to Wikipedia and check out your local Salvage yard. Chances are you'll find a Solara, Camry, Lexus, Sienna with a MZ ready to go
. But do the research. You'll find the difference in some engines regarding forged crank and HP so on and so forth. It's up to you what you want.
Engine mounts, I guess their are two engine mounts that might bring some problems because you will have to go to a machine shop and make them. I'd advice you go to Woodsport
for some help and guides. They also make them.
A cool set of Headers
would be also great for an awesome sound and some extra power. A lite weight chassis with a HP range of 210+. Dude, your the man. Then...in a RAV4...excuse me...RAV6.
If you are going to do your own Headers, watch that filter to Radiator area, its very very tight.
A 5 speed is a must, Auto is cool, but I'm old school. Oh, the majority of the V6 chassis are auto. So you will need a Fidanza Flywheel, have fun
All engine V6 ending in FE will work with the E250 transaxle. Stay Tune!
Next topic...MONEY and the rest.