2.9 v6 swap to a 2.3?

[fangotango306]

anyone ever swapped out a 2.9 v6 for a 2.3 4 banger. im looking to rid my bronco 2 of the 2.9 and put something else in it. i searched the forums and came up empty, my biggest concern is trans/t-case. what will bolt to the 4 cylinder? i have a 5 speed from a 98 2wd 2.5L truck. can i swap the tailhousing/shaft out from a m50d from a 97 ranger 4x4 and use that t-case?

 

[AllanD]

THE hard part of doing this beyond the obvious things (and less than obvious) like....

Wiring harness, Exhaust piping (Catalytic converter!) throttle cable...

The 2.3 radiator is "mirror image" to that for the other Ranger engines
(And very rare in the factory A/C HD core)

And the big show stopper is that the motor mounts on the 2.9 bolt directly to the engine crossmember, 2.3 mounts go to frame mounted brackets and what is ver y much less than obvious is that the frame side engine mount brackets for the 2.3 engine are completely different to fit the wider 4x4 engine crossmember, and no you cannot simply modify the
2wd engine mounts to fit the 4x4 engine crossmember, so an iron clad prerequisite to putting a 2.3 into a Bronco2 (or any 1983-97 Ranger Based Vehicle 4x4) are 4x4 2.3 frame brackets.

AD

 

[fangotango306]

mounts im not concerned with, i was plannin on fabbing those anyway, i have a few poly bushings and sleeves that will take care of that, and exhaust is no mind either, i have a 3" catco cat. planning on using a carbed/duraspark-msd setup on the 2.3. the trans/tcase is my only concern. and if i cant figure that out ill go with my stock 2wd 5 speed and a divorced t/case. thank you for your input!

 

[Shran]

No, you cannot use your V6 transmission. I would highly recommend avoiding the divorced t-case idea too... first you will have to find one, then figure out how to mount it, build shifters, a spud shaft, etc. THEN, you will find out that the t-case rear output is so close to the rear axle that it will be difficult to get any kind of reasonable pinion angle.

Doable on a Ranger? Yes, much longer wheelbase.

I think your best bet is to find a 4x4, 4 cylinder M5OD transmission. Otherwise you are wasting your time.

Why do you want a 4 cylinder anyway? Lot less work to do a 4.0 swap and you can reuse literally everything from your current drivetrain.

 

[jkufen]

Yeah I am curious to why would you want to downsize from a v6 to a 4 cylinder?

 

[fangotango306]

i already have a 2.3 4 banger fresh rebuild with a 2wd trans, thats kinda the biggest reason. im wanting to get away from efi and ditch the a4ld setup all together. i may end up just doing a carbed 302/c4. gettin a lot of flack everywhere i post the idea of a 4 banger. thanks for the input's guys,. i got a lot to think about.

 

[chilsam]

I say DO it!

i already have a 2.3 4 banger fresh rebuild with a 2wd trans, thats kinda the biggest reason. im wanting to get away from efi and ditch the a4ld setup all together. i may end up just doing a carbed 302/c4. gettin a lot of flack everywhere i post the idea of a 4 banger. thanks for the input's guys,. i got a lot to think about.

I'm wanting to do the same thing with a SVO mustang motor turbo n all there is a link on here suggesting a 88 or later blazer T5 driver side FDS or maybe using my mustang T5 with a jeep tailshaft and transfer case.Both with a turbo t-bird bellhousing.

 

[Shran]

i already have a 2.3 4 banger fresh rebuild with a 2wd trans, thats kinda the biggest reason. im wanting to get away from efi and ditch the a4ld setup all together. i may end up just doing a carbed 302/c4. gettin a lot of flack everywhere i post the idea of a 4 banger. thanks for the input's guys,. i got a lot to think about.

I don't think it's necessarily a bad idea, just not really worth the work. I think a carbureted 302 is not much better, is this your daily driver? I assume so? A carburetor and 3 speed auto is a bad combo for gas mileage...you'd be much better off with fuel injection and an AOD or 5 speed, especially since your truck is already set up for fuel injection.

Even if this is your wheeling rig, the carburetor is a poor choice when it's so easy to do EFI.

 

[Twister]

There was a guy around me selling a bronco ii with a 2.3 swapped in, i never got a chance to go and look at it, but from the pics, it looks like he did a good job swapping it.

If you want to do it, go for it. The main problem i see with it is, according to the tech library all the 4 bangers had less power than the 2.8 all the way till 98.

 

[Roger]

Since I'm considering doing the same thing, I like the idea. We yanked the running 2.3 and 5 speed from our 90 Ranger a couple weeks ago, so we could transplant an Explorer 40 and A4LD in instead. More power. But now I am looking for an early B2 for the 2.3. Is it a bit less power? Sure. But I figure it will be a bit more fun than an automatic, and if I find a dead motor B2, it will easily make more power. EFI is so much better for drivability and cold weather than any carb. Besides, looking to make it a roadster similar to an early Bronco. IF... I can get the state safety folks to sign off on it. Otherwise, I'll chop the back off instead...

I fabbed mounts for the 2.3 that used poly bushings and tube. Trust me, that motor is buzzy as all get out. But, will re-use them. Hoping the B2 crossmember is the same as the Rangers. Then the holes for my existing 2.3 mounts will drop right in.

 

[fangotango306]

I don't think it's necessarily a bad idea, just not really worth the work. I think a carbureted 302 is not much better, is this your daily driver? I assume so? A carburetor and 3 speed auto is a bad combo for gas mileage...you'd be much better off with fuel injection and an AOD or 5 speed, especially since your truck is already set up for fuel injection.

Even if this is your wheeling rig, the carburetor is a poor choice when it's so easy to do EFI.

efi is great for a daily on road driver. mine is not a daily. and even if it was i drive less than 25 miles per week. i have had carbed v8's with 3 speed autos in numerous vehicles including rangers. my whole intention is to get away from fuel injection/computer controlled anything with either swap. im going simple stripped down wheelin rig/streetable but primarily offroad. im not climbing walls or rock crawling and i have had many carbed off road trucks and had less issues with those that i have ever had with my efi rigs. my explorer is case in point. to many connections to get wet and wires to chase. and i had a 98 2wd that got swampped and cost about $400 worth of sensors and bearings. most of the distance runs i do the truck will be trailered so im not concerned with gas mileage, if i was id buy a prius.

 

[fangotango306]

Since I'm considering doing the same thing, I like the idea. We yanked the running 2.3 and 5 speed from our 90 Ranger a couple weeks ago, so we could transplant an Explorer 40 and A4LD in instead. More power. But now I am looking for an early B2 for the 2.3. Is it a bit less power? Sure. But I figure it will be a bit more fun than an automatic, and if I find a dead motor B2, it will easily make more power. EFI is so much better for drivability and cold weather than any carb. Besides, looking to make it a roadster similar to an early Bronco. IF... I can get the state safety folks to sign off on it. Otherwise, I'll chop the back off instead...

I fabbed mounts for the 2.3 that used poly bushings and tube. Trust me, that motor is buzzy as all get out. But, will re-use them. Hoping the B2 crossmember is the same as the Rangers. Then the holes for my existing 2.3 mounts will drop right in.

sounds sweet, but the cross members are different. but you can probably put your own holes in to make it work

 

[Jraymer360]

efi is great for a daily on road driver. mine is not a daily. and even if it was i drive less than 25 miles per week. i have had carbed v8's with 3 speed autos in numerous vehicles including rangers. my whole intention is to get away from fuel injection/computer controlled anything with either swap. im going simple stripped down wheelin rig/streetable but primarily offroad. im not climbing walls or rock crawling and i have had many carbed off road trucks and had less issues with those that i have ever had with my efi rigs. my explorer is case in point. to many connections to get wet and wires to chase. and i had a 98 2wd that got swampped and cost about $400 worth of sensors and bearings. most of the distance runs i do the truck will be trailered so im not concerned with gas mileage, if i was id buy a prius.

then do a v8. a carb 2.3 doesn't make much power wise...and you'd need to re-gear to like 5.13's to even see it.

 

[fangotango306]

alright. ill start aquiring parts this weekend.

 

[chilsam]

Keep us updated!