My ideas
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My ideas
My bronco II is now officaly my first car. I plan on driving it for about 2 yaers as a daily driver then it will be a project truck where i will swap in the 4.0 engine ( somehow, gotta find a place with the tools i need and stuff) and a super charger for the 4.0 (talk about a fast bronco) Anyone have anytips for this swap or suggestions. It would help me more plan out what i need to do. any idea on what i can do about the place and certain tool i will only need about this swap is there somekind of place that will allow me to rent or use a garage for this? Perhaps a junk yard?
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good luck on finding a place to do it thats the only reason i havent started with my project is i dont have a place to do it but find an explorer with the 4.0 and the yank all the parts you need from that for the conversion i know its not just like that but its a start
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yeh chances are i will find a good running one at the junk yard that may have been in a accident but the engine asn tranny are fine. That happens alot. There planty of cars i could pull this motor from so i dont care about rushing to get on. Any 4.0 explorer, ranger, aerostar, or mazda novihoe ( mazdas explorer) I dont know when they made them but a mercery moutnaineer may also have it.
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From: Racine county, WI
Only a 91-92 4.0 swap is reasonable from the research I've done. The others look like a wiring nightmare. The plug and play swaps you hear of are 91-92 explorer 4.0's into 89-90 BII's. Even then you're doing some mods. When looking for an engine just remember you'll need everything including the engine, ALL accessories, complete wiring harness and the ECU. It's by far best to get a whole donor vehicle. If you do that then you can also snag parts like the Dana 35 front and 8.8 rear. My best advice is to seriously study your current wiring and then hit the junk yards and see what vehicle will match the best. Also even though the 2.9 flywheel will bolt to the 4.0 it is my understanding that you will not get a 4.0 starter to match it. The 4.0 starter isn't cheap so if you can find a rare 4x4 5-speed M/T explorer you will be that much further ahead. Good luck. Personally I ended up passing on the 4.0 swap because although they are a better motor they don't offer much more stock hp. I figured if I was going through that much trouble I would be better off with a 5.0 or an intercooled turbo-coupe engine. I chose the turbo coupe engine but that’s another thread. 
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From: Racine county, WI
Originally Posted by bronocIInoob
yeh, im looking for a 90"s ford ranger. Ive never seen a 5spd explorer and ffinding one will be a nightmare. How ever the ranger will most likley have the 5 speed and the 4.0 motor.
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Yeh I knew there would be alot of wiring i would have to toy around with. But unlike welding or fabricating metal, i can do wiring with basic tools and my knowledg of wiring to do that. My main concern was if the trans and engine would bolt in correctly. Ill let you guys know in about 3 some years wehn i do this swap lol
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From: Racine county, WI
Originally Posted by bronocIInoob
Yeh I knew there would be alot of wiring i would have to toy around with. But unlike welding or fabricating metal, i can do wiring with basic tools and my knowledg of wiring to do that. My main concern was if the trans and engine would bolt in correctly. Ill let you guys know in about 3 some years wehn i do this swap lol
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And how would that pass inspection? Also there are SOOOO many thinge that hav t messed with like the cross member. I think a supercharged 4.0 will do.
Last edited by Ken00; Feb 15, 2006 at 07:40 PM.
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From: Perry,Ga.
"And how would that pass inspection? "
The same way the 4.0 would. When you change an engine from the original to a 4 banger to a 460 the inspection is next to impossable to pass.Why don't you just get a gen 1 Explorer Sport and start with one that has a 4.0 in it.you will have the axles you need and you can rebuild the 4.0 for less the you can do the swap.JMO.
The 2.9 in good shap has anought HP for the BII,the BII is not a veh.that is built for speed no matter what engine you got in it.As you stated the BII is NOT a sports car and SPEED is the major cause of rolling it over.
Do what you went to as you have to live with it.Good luck and I hope it works out for you.This is not a dis on you or what you and other people do with your BIIs.I'm just pointing out that a BII is no
t a veh. that is built for going FAST.
The same way the 4.0 would. When you change an engine from the original to a 4 banger to a 460 the inspection is next to impossable to pass.Why don't you just get a gen 1 Explorer Sport and start with one that has a 4.0 in it.you will have the axles you need and you can rebuild the 4.0 for less the you can do the swap.JMO.
The 2.9 in good shap has anought HP for the BII,the BII is not a veh.that is built for speed no matter what engine you got in it.As you stated the BII is NOT a sports car and SPEED is the major cause of rolling it over.
Do what you went to as you have to live with it.Good luck and I hope it works out for you.This is not a dis on you or what you and other people do with your BIIs.I'm just pointing out that a BII is no
t a veh. that is built for going FAST.
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i know that, and more power doesnt mean to go fast. (you are the one suggesting the 5.0 v8 swap lol) it means to have more power to do more with the vehicle. 140 hp is pretty limiting in the sence of off roading. What i ment was that how would you get a carborated motor in a vehicle that was desinged for an EFI motor and ecspect it to pass? I suppose you could go with the EFI v8 but that means you need to make you own wiring harnass, which isnt too fun. There no problem with passing inspection when you have the 4.0 motor inthere. The entire test is done by the exhuast emissions, for the most part they wouldnt be aware of the fact that it has the 4.0 motor. As long as all of the emmisons devices are working in the 4.0 it will pass.
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Also i wouldnt get an explorer for 3 reasons. Automatic trannys SUCK ( no offence to those who have or like them) and finding a 5 speed explorer is very very hard. 2, i like the bronco II styling and other features it has, which is most likley why people have done the 4.0 swap so many times. And 3, doing this swap is a great project, it'll give me somthing to do for atleast a month, like a those gas r/c cars and stuff this would be a great hobby.
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From: Perry,Ga.
The 5.0 is EFI engine.The 302 got a carb..The X sport has the some auto tranny as the BII.The same MT will fit the X as well as the BII.
If you'r building a Trail rig you will need to regear anyway.Bigger tires Taller gear and with the right gear ratio the 2.9 will give you a hp to weight ratio that is alsome
You said that you where building a fast BII,thats why I made the statement in my last post.Wheelin you need HP pluse the right gear.Also the stock front BII axle{D28} does not like a lot of HP or big tires.So you will need the D35 or a SAS for what you are going to do.Just another reasone to start with a X Sport.If I could fine an XSport 4x4 for sale the BII would find another home.Don't get me wrong I love my BII and its an alsome trail rig.Just the X comes with the stuff that you need to swap on the BII already.{D35,8.8 and 4.0 engine}.Just something to think about.
If you do the swap as you say keep us posted it sounds like great idea.We will need lots and lots of pics.too.
If you'r building a Trail rig you will need to regear anyway.Bigger tires Taller gear and with the right gear ratio the 2.9 will give you a hp to weight ratio that is alsome
You said that you where building a fast BII,thats why I made the statement in my last post.Wheelin you need HP pluse the right gear.Also the stock front BII axle{D28} does not like a lot of HP or big tires.So you will need the D35 or a SAS for what you are going to do.Just another reasone to start with a X Sport.If I could fine an XSport 4x4 for sale the BII would find another home.Don't get me wrong I love my BII and its an alsome trail rig.Just the X comes with the stuff that you need to swap on the BII already.{D35,8.8 and 4.0 engine}.Just something to think about.
If you do the swap as you say keep us posted it sounds like great idea.We will need lots and lots of pics.too.
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From: Racine county, WI
Originally Posted by GrayRanger4x4
The 5.0 is EFI engine.The 302 got a carb..The X sport has the some auto tranny as the BII.The same MT will fit the X as well as the BII.
If you'r building a Trail rig you will need to regear anyway.Bigger tires Taller gear and with the right gear ratio the 2.9 will give you a hp to weight ratio that is alsome
You said that you where building a fast BII,thats why I made the statement in my last post.Wheelin you need HP pluse the right gear.Also the stock front BII axle{D28} does not like a lot of HP or big tires.So you will need the D35 or a SAS for what you are going to do.Just another reasone to start with a X Sport.If I could fine an XSport 4x4 for sale the BII would find another home.Don't get me wrong I love my BII and its an alsome trail rig.Just the X comes with the stuff that you need to swap on the BII already.{D35,8.8 and 4.0 engine}.Just something to think about.
If you do the swap as you say keep us posted it sounds like great idea.We will need lots and lots of pics.too.
If you'r building a Trail rig you will need to regear anyway.Bigger tires Taller gear and with the right gear ratio the 2.9 will give you a hp to weight ratio that is alsome
You said that you where building a fast BII,thats why I made the statement in my last post.Wheelin you need HP pluse the right gear.Also the stock front BII axle{D28} does not like a lot of HP or big tires.So you will need the D35 or a SAS for what you are going to do.Just another reasone to start with a X Sport.If I could fine an XSport 4x4 for sale the BII would find another home.Don't get me wrong I love my BII and its an alsome trail rig.Just the X comes with the stuff that you need to swap on the BII already.{D35,8.8 and 4.0 engine}.Just something to think about.
If you do the swap as you say keep us posted it sounds like great idea.We will need lots and lots of pics.too.