3.4 w/supercharger into 89 4 runner

mechaniman · 10-06-2009, 10:08 PM

hi folks,
i worked out some work trade with the local wrecking yard, and it just so happens that my 3.4L supercharger motor gets here on friday.

I've been doing alot of research before I get started, and have notice some conflicting info.

Its going into a stock 89 4 runner.
I've heard some rumors that I would need a 2 inch body lift for this swap to work. is this true and why.
I'm not using a kit , im using the oil pan of my 3.0 , and the wrecking yard had the crossover exaust for me.
let me know if there is a snag i might of overlooked.

thanks for all the help.

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A New High · 10-06-2009, 11:48 PM

What crossover does the yard have for you?

The stock one won't work...

vital22re · 10-07-2009, 12:37 AM

well.. sounds like you need to go over the 3.4 swap section, you'll need more than just the motor and stock crossover. The newer (after 2000) crossover cant' be modified as easily to fit, you'll need the 3.4 ecu, evap box, o2 sensors, engine wiring harness, maf sensor, just to name some of the stuff. The reason for the lift is because the engine is too tall to fit underneath the hood. Had you read a little more bud, you'd know that. Cutting the hood is another option. Are you planning on using your 3.0 clutch components? is the 3.4 from a manual tranny? Not sure you've researched enough. I read through the 3.4 swap section 4 times before i knew what i was doin, and before I even found a donor vehicle.

yodathespian87 · 10-07-2009, 08:01 AM

Like Vital said read through every thread. Seriously, but congrats on that find. You are going to really want to get your hands on every acc. under that hood. I didn't and my swap is taking way to long. But the basics are the ECU and harness from the donor vehicle in which your engine came from. Right there you will eliminate half the issues folks have with this swap. As for the crossover you will need it to exit out the drivers side and I doubt the one they have is doing that. Unless someone has already made the conversion (then why they selling it?)Other things you will need off of your old 3.0 are the oil sender, oil pan, pick up and splash plate. Throw out bearing, keep your 3.0 radiator. Charcoal canister is optional, I'm going with the 3.4 EVAP box. Other then that best luck. Wish I had a supercharger on mine that would be sweet.

mechaniman · 10-07-2009, 12:30 PM

the wrecking yard I'm getting the motor from specializes in these swaps. The motor I'm getting is from a 99 taco TRD with manual trans. a guy at the wrecking yard makes the crossover they gave me. I'm using the manual from my 3.0, buying a clutch kit for 3.4, and throwout bearing from a 3.0.
the wrecking yard is providing me with everything I need.
Its coming with all the acc. from the 3.4L including evap and all that stuff.
I was just hoping to get some info on the body lift.
also with the supercharger does that leave me with less clearance. thanks y'all

TatonkaII · 10-07-2009, 03:20 PM

Yes, you will either need a body lift or hood modification to clear the SC as it does sit higher than stock.

10-06-2009, 11:48 PM	#2 (permalink)
A New High Registered User Join Date: Jul 2008 Location: Gresham, Oregon Posts: 35	What crossover does the yard have for you? The stock one won't work... __________________ Tyler 1992 White Runner 3VZ/A340 5VZ/R150(in progress)\|Inchworm 23spl\|MC XD 23spl 4.7's\|D60/14B waiting to go in after winter It's A Jaap Thing

10-07-2009, 12:37 AM	#3 (permalink)
vital22re Registered User Join Date: Feb 2006 Location: kirkland washington Posts: 683	well.. sounds like you need to go over the 3.4 swap section, you'll need more than just the motor and stock crossover. The newer (after 2000) crossover cant' be modified as easily to fit, you'll need the 3.4 ecu, evap box, o2 sensors, engine wiring harness, maf sensor, just to name some of the stuff. The reason for the lift is because the engine is too tall to fit underneath the hood. Had you read a little more bud, you'd know that. Cutting the hood is another option. Are you planning on using your 3.0 clutch components? is the 3.4 from a manual tranny? Not sure you've researched enough. I read through the 3.4 swap section 4 times before i knew what i was doin, and before I even found a donor vehicle. __________________ 92 toyota truck 3.4 5spd 4.56 gears magna flow cat and muffler2 1/4 piping isr mod to intake 1.5 bjsfront add a leafs and 2inch lift shackles rear rancho shocks all around sitting on 265/75/r16 nitto terra grapplers

10-07-2009, 08:01 AM	#4 (permalink)
yodathespian87 Contributing Member Join Date: Apr 2008 Location: Colorado Springs, Colorado Posts: 468	Like Vital said read through every thread. Seriously, but congrats on that find. You are going to really want to get your hands on every acc. under that hood. I didn't and my swap is taking way to long. But the basics are the ECU and harness from the donor vehicle in which your engine came from. Right there you will eliminate half the issues folks have with this swap. As for the crossover you will need it to exit out the drivers side and I doubt the one they have is doing that. Unless someone has already made the conversion (then why they selling it?)Other things you will need off of your old 3.0 are the oil sender, oil pan, pick up and splash plate. Throw out bearing, keep your 3.0 radiator. Charcoal canister is optional, I'm going with the 3.4 EVAP box. Other then that best luck. Wish I had a supercharger on mine that would be sweet. __________________ 86 Pickup 4x2, Manual (Sold) 87 Extra Cab Pickup 4x4, Manual (Sold) 93 4Runner 4x4, Manual, 3.4 Swap In progress 90 4Runner 4x4, Manual, Blown 3.0 (Stripping out for parts then to become a trail rig/camping/fun truck) 94 Lexus SC400, 1UZ, magnaflow exhaust, after market headlights, bought for parts for the swap into the 90 4Runner

10-07-2009, 12:30 PM	#5 (permalink)
mechaniman Registered User Join Date: Aug 2009 Posts: 4	sorry folk , i didnt give you enough info the wrecking yard I'm getting the motor from specializes in these swaps. The motor I'm getting is from a 99 taco TRD with manual trans. a guy at the wrecking yard makes the crossover they gave me. I'm using the manual from my 3.0, buying a clutch kit for 3.4, and throwout bearing from a 3.0. the wrecking yard is providing me with everything I need. Its coming with all the acc. from the 3.4L including evap and all that stuff. I was just hoping to get some info on the body lift. also with the supercharger does that leave me with less clearance. thanks y'all

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10-07-2009, 03:20 PM	#6 (permalink)
TatonkaII Registered User Join Date: Oct 2008 Posts: 24	Yes, you will either need a body lift or hood modification to clear the SC as it does sit higher than stock.