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3.0 liter / 3.4 liter engine swap?

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Old 03-16-2010, 08:56 PM   #1
Piginabag [OP] Piginabag is offline
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3.0 liter / 3.4 liter engine swap?

Here's my bad idea of the day: I have a beloved 2001 Tacoma - V6, 5-spd., 4X4, extracab, 170,000 mi. - that a punk in an Acura drove through the side of (shortly after I dropped the collision coverage from my insurance). Body mashed stem to stern, frame twisted, half the front suspension is in the bed - in layman's terms, it's totaled.

It's been sitting on a trailer in my driveway like a modern art sculpture while I figure out what to do with it. Now, I find a 1994 pickup - V6, 5-spd., 4X4, extracab, 180,000 mi. - in pristine condition, for sale very, very cheap because it has a blown 3.0.

So, the question is - 2001 3.4 into the hole where a 1994 3.0 was? If you think this sounds like a bad idea, I do too, and my wife really does - so you don't have to tell me that. If you have some real knowledge or experience with this, positive, neutral, or negative, I'd love to hear it. Thank you!
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Old 03-16-2010, 08:57 PM   #2
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have you tried looking for an old 3.0?
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Old 03-16-2010, 08:58 PM   #3
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It shgouldnt be too hard, as you have a doner vehicle. THe engine mounts are different, but you can fab those up or have a shop do it. I think that would be the most difficult part. And welcome to TW!
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Old 03-16-2010, 09:21 PM   #5
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It's been done before. Check out Yotatech.com. There are a couple guys who have done write ups.
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Old 03-17-2010, 07:56 AM   #6
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Thank you, guys. I've seen a radial engine from an WWII landing craft put in a motorcycle, and a Subaru-powered airplane - so nothing's impossible. It's the rating on the Pain In The Ass scale that I wonder about. And yes, I do have the complete donor truck, which helps a lot. But, having the ECU wiring loom cut apart and flipping back and forth between two wiring diagrams (let's see, red with yellow becomes brown with green, if that's the + to the MAF sensor...repeat 200 times) - done that; it's not cool.

That motor mount info is what I was looking for - and if I can't use the mounts from the 3.0 or the 3.4, it begs the question Why? Is the frame different? If it were a plug-n-play, there'd be no question. But, if I had the change the whole wiring harness & ECU, swap the transmission and transfer case because it doesn't bolt up, then fab all the mounts, exhaust, and drive shafts - just to end up with a truck with weird problems (you just know the engine would stall going uphill around a sharp corner, and the tach would run backwards, and it would never pass emissions again!) - I might as well drop my Detroit 4-53 into my 1955 Land Rover and have something really cool!

Thanks again, and thanks for the Yotatech reference - I'll check that out!
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Old 03-17-2010, 09:04 AM   #7
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In addition to multiple threads at YotaTech, I'd recommend checking this thread over at Pirate 4X4:

http://www.pirate4x4.com/forum/showt...hreadid=137361
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