what years
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Cargo Master
Joined: Feb 2002
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From: Tucson USA
what years
Can anyone tell me what actual years of engines will fit to replace a 4.0 ohv? I see some that are for 90-94, some are 95-96/97. It appears that all thru 97 have the same transmission, and that there were some additional holes added after 94! So I need to know what will fit my 94 and if there are any other issues with using one from an explorer?
Mine has 300+K on it, I have I think a blown head gasket and I have found some used engines but a lot are post 94 so that leads to my question.
Mine has 300+K on it, I have I think a blown head gasket and I have found some used engines but a lot are post 94 so that leads to my question.
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From: Butler, IN
"The 4.0L OHV engine was produced until 2000 and was used in the Ford Explorer and Ranger. Output was 160hp and 225 ft·lbf. Though there is some variation, typically 155hp is quoted as horsepower for 1990-1992 applications.
In 1998 the 4.0L SOHC (Single Over Head Cam) engine replaced the 4.0L OHV engine producing 207hp." The Ford Ranger 4.0L Engine - The Ranger Station
These engines are used in Rangers, Explorers and some Mazda products. From your year you will need a 4.0 OHV.
In 1998 the 4.0L SOHC (Single Over Head Cam) engine replaced the 4.0L OHV engine producing 207hp." The Ford Ranger 4.0L Engine - The Ranger Station
These engines are used in Rangers, Explorers and some Mazda products. From your year you will need a 4.0 OHV.
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Cargo Master
Joined: Feb 2002
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From: Tucson USA
guys thanks for taking the time to respond, but the yards will only tell you 91-94, the cut and paste is from the ranger station and that is where I saw the ref's to the different years. But I still need to know if an engine from say a 97 ohv will work in the 94? The trans per ranger station were the same, I dont know if there were any mount changes that would be a problem. Were the heads modified to a different bolt pattern, will a 95-97 work with my computer and stuff that is what info I need or were they further moded so that they must have that particular years equipment to operate.
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From: Amherst, WI
"The 4.0L OHV engine was produced until 2000 and was used in the Ford Explorer and Ranger. Output was 160hp and 225 ft·lbf. Though there is some variation, typically 155hp is quoted as horsepower for 1990-1992 applications.
In 1998 the 4.0L SOHC (Single Over Head Cam) engine replaced the 4.0L OHV engine producing 207hp." The Ford Ranger 4.0L Engine - The Ranger Station
.
In 1998 the 4.0L SOHC (Single Over Head Cam) engine replaced the 4.0L OHV engine producing 207hp." The Ford Ranger 4.0L Engine - The Ranger Station
.
To the OP, I'd go to The Ranger Station, that is a popular swap and done more than several times.
Dave
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From: Butler, IN
From my research, any 1990-2000 4.0 OHV will work. The intake or exhaust manifolds MAY be different though for added sensors or the vehicle it would be in. I haven't come across any changes to the block or heads. Still the basic engine for 10 years. I forgot they also came in the Ford Aerostar.
This statement from Ford Ranger 4.0L V-6 Engine Swap may have mislead you. "Vehicles earlier than the 1994 model year appear to be the best donors for this job since many of the swapped components replace similar or identical items in the recipient vehicle. 1995 and newer models have layout changes that would require extensive adapting." It is referring to lay out changes, not the block or heads.
Couldn't find any block or head changes in Wiki either. Ford Cologne V6 engine - Wikipedia, the free encyclopedia
Where did you get your info, Hank?
This statement from Ford Ranger 4.0L V-6 Engine Swap may have mislead you. "Vehicles earlier than the 1994 model year appear to be the best donors for this job since many of the swapped components replace similar or identical items in the recipient vehicle. 1995 and newer models have layout changes that would require extensive adapting." It is referring to lay out changes, not the block or heads.
Couldn't find any block or head changes in Wiki either. Ford Cologne V6 engine - Wikipedia, the free encyclopedia
Where did you get your info, Hank?
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Cargo Master
Joined: Feb 2002
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From: Tucson USA
As I noted earlier, the ranger station, a real good tech library to be found there. I just spoke with a guy and he thinks that all will fit, not sure so he is going to see what the differences are. also going to look for another tranny, figure if I can find both cheap, I can just R&R and then rebuild mine at my leisure!
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Since you have '94 vehicle you have to use the '90-94 motor because the shape of the combustion chambers is different before and after '95. The later motor has "fast burn" chambers. According to Ford's own documentation, putting a later motor or head on an older vehicle will result in serious engine damage. The reason is the older motors used more timing advance because the burn speed was lower. The later design allowed for similar power output, reduced emissions, and a reduced tendency to knock and ping because less timing advance was needed to get results.
The stock computer doesn't know which engine you have, it was designed for the older engine. If you swapped computers you could use the newer motor, but then you would need to swap other wiring, and you would need whichever transmission the donor vehicle used.
Using the older engine or older head on a model made after '95 will result in a noticeable decrease in performance, increased emissions, and terrible economy.
The motor could be a '95 or '96 if it came off and Aerostar, the Aerostar didn't get the fast burn chamber till '97.
The stock computer doesn't know which engine you have, it was designed for the older engine. If you swapped computers you could use the newer motor, but then you would need to swap other wiring, and you would need whichever transmission the donor vehicle used.
Using the older engine or older head on a model made after '95 will result in a noticeable decrease in performance, increased emissions, and terrible economy.
The motor could be a '95 or '96 if it came off and Aerostar, the Aerostar didn't get the fast burn chamber till '97.
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Cargo Master
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From: Tucson USA
Khan thanks, it makes sense, however the m50d trans was used up thru 97 I believe that is what the ranger station indicated! So how would the engine know what trans if it was a manual to manual install? I am still waiting to hear from the guy I spoke with yesterday.
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From: Butler, IN
What Khan said is true as I found a thread about fast burn heads. It narrows down the search for your engine.
"Engine:
I'd personally use a 93-94 4.0. They seem a bit more robust, have good heads (93TM casting), and show less failures than later or earlier 4.0's. 90-92' 4.0's seem to crack heads a little more often. It's said that a 95+ 4.0's can be used but the smaller fast burn chambers that made the engines more emissions friendly, actually make the engine a little less fuel efficient......go figure.
Later engines will need early intake manifolds, injectors, etc. swapped onto them."
4.0 Swap Info Specific to 93-94' Rangers - The Ranger Station Forums
"So how would the engine know what trans if it was a manual to manual install?" It wouldn't. The trouble would begin if an auto trans computer would be used with a manual trans or vice versa. Don't ask how I know that.......:-/
"Engine:
I'd personally use a 93-94 4.0. They seem a bit more robust, have good heads (93TM casting), and show less failures than later or earlier 4.0's. 90-92' 4.0's seem to crack heads a little more often. It's said that a 95+ 4.0's can be used but the smaller fast burn chambers that made the engines more emissions friendly, actually make the engine a little less fuel efficient......go figure.
Later engines will need early intake manifolds, injectors, etc. swapped onto them."
4.0 Swap Info Specific to 93-94' Rangers - The Ranger Station Forums
"So how would the engine know what trans if it was a manual to manual install?" It wouldn't. The trouble would begin if an auto trans computer would be used with a manual trans or vice versa. Don't ask how I know that.......:-/
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Cargo Master
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From: Tucson USA
19704x4, I was over on the ranger station site and found the following:
Rebuilding The Ford 4.0L Pushrod V6, Doug Anderson, Automotive Rebuilder, April 2001
seems that most of the parts will interchange as noted by khan, but there are limitations so it seems I can use an aerostar engine up thru 97, or a 90-94, but the early ones seem to have some issues! Anyhow hope to get into looking at mine to see what the problem is. Hopefully just a head gasket which means about $200 in parts (gaskets and new head bolts). If its just a gasket will just replace as to do anything else will lead to issues later until I can find a good engine to rebuild.
Rebuilding The Ford 4.0L Pushrod V6, Doug Anderson, Automotive Rebuilder, April 2001
seems that most of the parts will interchange as noted by khan, but there are limitations so it seems I can use an aerostar engine up thru 97, or a 90-94, but the early ones seem to have some issues! Anyhow hope to get into looking at mine to see what the problem is. Hopefully just a head gasket which means about $200 in parts (gaskets and new head bolts). If its just a gasket will just replace as to do anything else will lead to issues later until I can find a good engine to rebuild.
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