V8 into a '92 4Runner

Submitted: Wednesday, Apr 14, 2004 at 20:56
ThreadID: 12052 Views:10121 Replies:5 FollowUps:0
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Hi All

looking for a bit more towing grunt for my '92 4Runner, the 3L V6 is getting a bit tired and is not getting my camper trailer up hills the way i'd like.
Does anyone know, or has been through converting a 4Runner to a V8 ?
I was looking at the Holden 5L from a '96 VS SS commodore.


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Reply By: rolande- Wednesday, Apr 14, 2004 at 21:06

Wednesday, Apr 14, 2004 at 21:06
I have seen this done a lot of times, do a 'net search for adaptors such as Mark's (No pun intended), etc. Sure to find a kit to bolt it straight in. Don't forget to include engineering cert's etc and remember 5Ltr will rev same as current V6 unless diff ratio's changed. Check current R.P.M before deciding to go any further.
AnswerID: 54256

Reply By: ianmc - Wednesday, Apr 14, 2004 at 21:24

Wednesday, Apr 14, 2004 at 21:24
Yes & get ready for Tojo diffs ,axles, c/v's, gearboxes spat all over the highways & byways I would think unless you upgrade those too. They were not V8 strength.
AnswerID: 54262

Reply By: Eric Experience. - Wednesday, Apr 14, 2004 at 22:50

Wednesday, Apr 14, 2004 at 22:50
Its true this conversion has been done lots of times but the result always turns out to be much more exspensive than buying a new vehicle, and when its all paid the vehicle has no resale value. the diffs springs brakes gear box power stearing wiring loom radiator all have to be changed. You can pick up a patrol TI for less money and travell in style. Eric.
AnswerID: 54290

Reply By: Member - Bradley- Thursday, Apr 15, 2004 at 11:01

Thursday, Apr 15, 2004 at 11:01
Check out dellow automotive , you can get their catalogue off their site. They do lots of v6 & v8 conversion kits into hilux / 4runner. Look at the 4litre quad cam lexus motor option if you go for the v8 , very light , 200kw standard, toyo product, very smooth engine.


But keep in mind the comments regarding re-sale values etc. You never get your money back on stuff like this.

Why not just re-work the existing motor ??
AnswerID: 54342

Reply By: prado_95 - Saturday, Apr 17, 2004 at 22:06

Saturday, Apr 17, 2004 at 22:06
In the above I will assume the 5L engine you refer is not the Toyota 5L 3.0 litre diesel engine.

Its torque you need for towing, not outright power (tho its nice).

Hilux are known (even with the stronger v6 running gear) to break driveline bits under some duress.

perhaps a better (& more economical) fit would be ecotec 3.8 V6 (with supercharger if you can find a factory unit). Same max torque, but a hole lot lighter & more fuel efficient than 5 litre

Conversion costs will be similar (for parts labour).
AnswerID: 54742

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