Steve Harris said:
How much money are we talking for a complete 3.4 swap? I would love to have that power in my truck. My brothers 98 taco has well over 200,000 miles and still pulls strong.
The ORS kit is the easiest, but NOT the cheapest. A friend of mine found a low mileage engine and tranny for $500 and completed the entire swap for under $2K w/ supercharger. He did the wiring himself with great success.
As for getting more hp out of the 3.0, it *IS* possible, but it's more spendy than the 3.4. Tim @DOA Racing engines gets $10K for a 200HP 3.0 long block. Others have gotten 180-200 HP with ported heads, headers, intake, modified injection, throttle body and ported intake manifold; this was a full rebuild and the person had connections.
Harry is correct; I had a 94 4Runner (loved that truck) with DOA heads, K&N intake, free-flow exhaust, Hotter ignition. The engine ran VERY smooth and pulled very well - but only above 3500K RPMS. Did I like the mods? YES! Were the heads worth the $2500 I had into them (with install @ a dealer due to HG failure, which I ended up having to pay for)? NO!
The truck gets about 14mpg w/ 4.88's and 33" tires, according to the new owner.
My current 88 4Runner has intake, throttle body, headers, exhaust - It's still a dog. Better than stock, but a dog. My friends 89 has new (stock) heads on it and pulls like a V8 - it makes no sense.
I've owned 4 3.0's, 5 3.4's.. The 3.0 is a MUCH smoother engine, but I'll take a 3.4 any day. I will be doing this swap on my 88 sometime in the future.