: 4.0 engine swap?


NCGamedog
01-20-2008, 05:47 PM
any one ever done this? i am thinking of selling my 1ton blazer and building a scout. here is my vision: Scout 800 A/B, 4.0 cherokee engine, NV3550 trans, D300 jeep case 4:1 twin stick, D44 front from a chevy (cause it bolts right up), 9" rear, yj or toy rear springs up front, chevy 56"/ cherokee/toy springs out back, scout II steering box w/ crossover. i would want this to be a nice dual duty rig splitting DD/ trail truck about 70/30 respectively. i want it to be comfortable to ride in and dependable (AC and such is NOT important). i just would like it a little quieter than a tin can and have good heat. i would likely run 33" at's or bfg km2's on the street and have room for 35's offroad. i dont mind trimming the fenders some but basicly want to retain the original "look" of the scout. i would probly trim 4-6" of the bottom, like around the back and rockers just to get the sheet metal off the ground. what do you think? doable? how much you guys think the 4.0 swap would be? and how much of PITA? does anyone build a dumbed down stand-alone wiring harness for the 4.0? thanks for your input. -justin

Urban Wheeler
01-21-2008, 07:11 AM
1. Why do you want the Jeep motor? (why would we know anything about it?)
2. If you look around you can find a Scout with an AMC motor from the factory, just put a GM tbi on it.
3. How wide are your new axles going to be? that Chevy 44 may "bolt right up" but it's going to be a wide mother.
4. If you want it quieter than a tin can you'll have to add some kind of interior and run the exhaust out from under the truck, or take the top off. (does wonders)
5. There's not enought metal in the rockers to trim 4-6 inches.

NCGamedog
01-21-2008, 07:54 AM
b/c the 4.0 has enough torque and hp to suit my needs and its dependable ( one of the only jeep things that is) i dont want a v8 for this particular project . if i wanted a scout on i tons and with a 350 i would just swap my current dtrain in (check my sig) I agree that an AMC 360 or 304 are good engines but they are old and would most likely need rebuilding (adding cost). Only the 360 will out torque the 4.0 and the 4.0 will get much better mileage. you have to remember old v8 engines in stock form dont make over 200 hp in most cases. i've been around the 4'wheeling game a good while and am aware of all the options for the most part so i'm not going to justify why i think this is a good drive train choice i would just like to know if it has been done b4 and if anyone can shed some light on the swap from an experianced point of view. I realize alot of scout people are purist and i respect that, my best friend and i restored an 80 about 10 years ago w/ the little 152 and we still enjoy it to this day. thanks for your input and anyone else you might offer some help -j

NothernAZxj
01-21-2008, 08:07 AM
I think your build sounds great. The 4.0 is a wonderful motor the HO version is right at 200hp and plenty of torque. My only thought would be to run the AW4 auto behind it, instead of the stick for great reliabliity and ease, your d300 will bolt right ot it and is several inches shorter than the nv3550 if my memory serves me. they can be picked up for around 100.

NCGamedog
01-21-2008, 12:50 PM
yeah the AW4 is a good tranny, though i am not a huge fan of autos. certianly drivetrain length is an issue w/ something like the little scout bc of wb. i will likely strech the wb a couple inches but want it to stay pretty close to stock for turning radius. so the AW4 may be the way to go for cost and length... i am not too familiar w/ the 3550 i was thinking it has a 4:1 1st gear which would be nice. what about a TF999 will the d300 bolt to it as well? and how does it stack against the AW4? enigine swap info anyone? i will probably shoot for running toyota drive shafts too b/c i have a lot of them and they are killer strong and are flanged which i really like.

NothernAZxj
01-21-2008, 06:32 PM
yeah the AW4 is a good tranny, though i am not a huge fan of autos. certianly drivetrain length is an issue w/ something like the little scout bc of wb. i will likely strech the wb a couple inches but want it to stay pretty close to stock for turning radius. so the AW4 may be the way to go for cost and length... i am not too familiar w/ the 3550 i was thinking it has a 4:1 1st gear which would be nice. what about a TF999 will the d300 bolt to it as well? and how does it stack against the AW4? enigine swap info anyone? i will probably shoot for running toyota drive shafts too b/c i have a lot of them and they are killer strong and are flanged which i really like.

The Tf999 is not near as stout as the Aw4, and is a 3 speed auto, the only downside to the aw4 is its computer controlled but one of our guys here makes a manual shift kit for it

larboc@hotmail.com
01-21-2008, 08:44 PM
1. Why do you want the Jeep motor? (why would we know anything about it?)
2. If you look around you can find a Scout with an AMC motor from the factory, just put a GM tbi on it.


b/c the 4.0 has enough torque and hp to suit my needs and its dependable ( one of the only jeep things that is) i dont want a v8 for this particular project . if i wanted a scout on i tons and with a 350 i would just swap my current dtrain in (check my sig) I agree that an AMC 360 or 304 are good engines but they are old and would most likely need rebuilding (adding cost). Only the 360 will out torque the 4.0 and the 4.0 will get much better mileage. you have to remember old v8 engines in stock form dont make over 200 hp in most cases. i've been around the 4'wheeling game a good while and am aware of all the options for the most part so i'm not going to justify why i think this is a good drive train choice i would just like to know if it has been done b4 and if anyone can shed some light on the swap from an experianced point of view. I realize alot of scout people are purist and i respect that, my best friend and i restored an 80 about 10 years ago w/ the little 152 and we still enjoy it to this day. thanks for your input and anyone else you might offer some help -j

He's talking about the amc 232 6-cylinder, to my knowledge they never put anything but an international v8 in a US scout. I would guess it would be a dog of a motor, but would the 4.0 drop in?

On the 6cyl early scouts, do they move the body like they do with the 304?

binderbound
01-23-2008, 12:48 AM
4.3/465/D300. Cheap and easy. Good power, light. Easy swap. I wouldn't monkey with the jeep stuff. Too many variables.

Urban Wheeler
01-23-2008, 06:15 AM
He's talking about the amc 232 6-cylinder, to my knowledge they never put anything but an international v8 in a US scout. I would guess it would be a dog of a motor, but would the 4.0 drop in?

On the 6cyl early scouts, do they move the body like they do with the 304?

You don't know much about Scouts, then. Scout IIs were also built with Isuzu diesels (I'm sure you know that) 196 4 banger, and AMC 258. IIRC it was a 258. IH also experimented with and built a few Chrysler slant 6 powered Scouts, but they never made it into production.

At one time IH couldn't built 392s fast enough so they bought some 401s from Dodge to put in the travelalls or trucks. My recollection is a little fuzzy on that.

Urban Wheeler
01-23-2008, 06:32 AM
If you are starting with a 4 cylinder Scout then almost any motor is an upgrade.

If you search AMC in this forum there are a few threads on the subject.

Mechanos
01-23-2008, 08:03 AM
You don't know much about Scouts, then. Scout IIs were also built with Isuzu diesels (I'm sure you know that) 196 4 banger, and AMC 258. IIRC it was a 258. IH also experimented with and built a few Chrysler slant 6 powered Scouts, but they never made it into production.

At one time IH couldn't built 392s fast enough so they bought some 401s from Dodge to put in the travelalls or trucks. My recollection is a little fuzzy on that.

:confused::confused::confused::confused::confused:

binderbound
01-23-2008, 11:04 AM
You don't know much about Scouts, then. Scout IIs were also built with Isuzu diesels (I'm sure you know that) 196 4 banger, and AMC 258. IIRC it was a 258. IH also experimented with and built a few Chrysler slant 6 powered Scouts, but they never made it into production.

At one time IH couldn't built 392s fast enough so they bought some 401s from Dodge to put in the travelalls or trucks. My recollection is a little fuzzy on that.


Dont call somebody out if you cant get your facts straight.:shaking:

IHC-6
01-23-2008, 11:08 AM
You don't know much about Scouts, then. Scout IIs were also built with Isuzu diesels (I'm sure you know that) 196 4 banger, and AMC 258. IIRC it was a 258. IH also experimented with and built a few Chrysler slant 6 powered Scouts, but they never made it into production.

At one time IH couldn't built 392s fast enough so they bought some 401s from Dodge to put in the travelalls or trucks. My recollection is a little fuzzy on that.

That would be Nissan Diesels, and 401's from AMC.

larboc@hotmail.com
01-23-2008, 12:39 PM
He's talking about the amc 232 6-cylinder, to my knowledge they never put anything but an international v8 in a US scout. I would guess it would be a dog of a motor, but would the 4.0 drop in?

On the 6cyl early scouts, do they move the body like they do with the 304?

You don't know much about Scouts, then. Scout IIs were also built with Isuzu diesels (I'm sure you know that) 196 4 banger, and AMC 258. IIRC it was a 258. IH also experimented with and built a few Chrysler slant 6 powered Scouts, but they never made it into production.

At one time IH couldn't built 392s fast enough so they bought some 401s from Dodge to put in the travelalls or trucks. My recollection is a little fuzzy on that.

I said scout, not scout II. We are talking about scout 800's like he originally posted right? and I believe it was a 232, not a 258 in the early scouts.

I said that I didn't think they put anything but an INTERNATIONAL V8 in them. I knew they put other motors in them, but no v8's of any other brand in a US scout or scout II except for the 401 but again not in early scouts.

I never knew they put an isuzu in there though, that is news to me.

NVScouter
01-23-2008, 02:36 PM
:confused::confused::confused::confused::confused:

No shit! WTF Mang?

Blind Driver
01-23-2008, 06:50 PM
I was thinking the 401s were only put into the trucks :confused:


If you put put in a FI 4.0, be sure to add the check engine light into your dash :D

larboc@hotmail.com
01-23-2008, 07:04 PM
I was thinking the 401s were only put into the trucks :confused:


If you put put in a FI 4.0, be sure to add the check engine light into your dash :D

and a a spare CPS

and a plan for getting home when you can't get it to run.

Urban Wheeler
01-23-2008, 07:25 PM
Dont call somebody out if you cant get your facts straight.:shaking:
Yeah, I said my memory was a little fuzzy on this.
That would be Nissan Diesels, and 401's from AMC.
I wanted to type Mopar, but I knew it wasn't right. I knew it was a Japanese diesel, just forgotr which one.
I said scout, not scout II. We are talking about scout 800's like he originally posted right? and I believe it was a 232, not a 258 in the early scouts.

Well, when people say "Scout" I don't think to limit my thinking to just one model Scout. Had someone said 800, then I would have kept quiet.

larboc@hotmail.com
01-23-2008, 09:24 PM
...Scout 800 A/B...

Had someone said 800, then I would have kept quiet.

.

may pop
01-24-2008, 07:37 PM
Just for your info I.H. put a 232 in 1970. I have a 70 Scout that came new with that engine. 4.0 with a 5 speed would be a terrific combo. some 4.10 or 4.88 gears SUPER
Ron

NVScouter
01-25-2008, 07:07 AM
Just for your info I.H. put a 232 in 1970. I have a 70 Scout that came new with that engine. 4.0 with a 5 speed would be a terrific combo. some 4.10 or 4.88 gears SUPER
Ron

I think you just missed the point of this post, and the website.

Urban Wheeler
01-26-2008, 02:18 PM
to my knowledge they never put anything but an international v8 in a US scout.

There are 4 models of Scout, 80, 800A, 800B, Scout II. You (larboc) didn't specify any one flavor. As I said before, "Scout" covers a lot of years.

NothernAZxj
01-27-2008, 09:16 PM
and a a spare CPS

and a plan for getting home when you can't get it to run.

Funny, IVe got 3 4.0 rigs in the yard, none have problems ever with the 4.0 setups, a 90 (renix) a 95, and a 04, the renix has 310,000 miles with no issues
oh and actually starts in cold weather.

larboc@hotmail.com
01-27-2008, 09:26 PM
don't get me wrong, when a 4.0 works, it works great. but if anything ever goes wrong, get rid of it.

NothernAZxj
01-28-2008, 07:34 AM
don't get me wrong, when a 4.0 works, it works great. but if anything ever goes wrong, get rid of it.

Why you not smart enough to repair it???????????????:flipoff2: