V6 Tranny in V8

Discussion in '1994 - 1995 Specific Tech' started by BlueBomber, Mar 23, 2007.


  1. BlueBomber

    BlueBomber New Member

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    Can anyone confirm if the manual tranny of a 94 V6 is the same as the 94 V8? I have already swapped my engine to 5.0L on my 94 and left it auto. Now i can get a 5-speed from a V6 and am thinking of putting that in.
     
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  2. GTA_V6_Mustang

    GTA_V6_Mustang Active Member

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    Yes you can they both have the same p/n's. You should have no problem. Make sure you put some fresh fluid in it though:D
     
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  3. BlueBomber

    BlueBomber New Member

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    Oh nice! I'm getting a whole doner car so I should have every part needed right? The only thing i can think that i will need would be a V8 manual ECU right?
     
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  4. divit250r

    divit250r Member

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    Does the 3.8 have the same bellhousing bolt pattern as a smallblock? If it does, no biggie, but if it's different, wouldn't you need to change the input shaft to match the correct bell housing depth? :shrug:

    Scott
     
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  5. HGFireHazard

    HGFireHazard Member

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    I was going to post this last night but couldn't find any stone cold facts. I thought the V6 transmission didn't hold as much torque as the V8 one, but like I said I'm having difficulty finding the facts out.

    If torque rating isn't a problem then go for it, but if it is I would try and look around, or see if someone else says something.
     
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  6. 1slow95

    1slow95 Founding Member

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    The 3.8 bellhousing is not the same as the 5.0 bell, but the transmission is the same. The V-6 tranny has the same torque rating as the V-8. I ran one behind my 418 for a couple months with no problems.
     
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  7. BlueBomber

    BlueBomber New Member

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    ok actually my garage also told me it had a different bellhousing. So what i would need is a 5.0 bellhousing? does the year matter? I thought it had a chance because the 5.0L engine bolted straight to my V6 automatic tranny so i figured the bolt pattern would have to be the same on a v6 and v8 engine for it to have done that
     
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  8. '66 coupe

    '66 coupe Founding Member

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    Umm...I would find a new garage. The 3.8 shares the Small Block Ford bolt pattern on the bell housing.
    This is why those who have done the 4r70w swaps have used V6 trannies, unless they used AODE housing.

    http://en.wikipedia.org/wiki/List_of_Ford_bellhousing_patterns

    Funny source, I know, but it's accurate(even on the 200ci I6 stuff).
     
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  9. 1slow95

    1slow95 Founding Member

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    I did not know this....Thanks for the info.

    BlueBomber, you would a 94-95 bellhousing to go with a 94-95 transmission. I have one from my 5.0 that I might be willing to sell.
     
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  10. BlueBomber

    BlueBomber New Member

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    Wait now i'm confused... 66 coupe you are saying that the bellhousing is the same and so the tranny should fit right up right? I have a 95 original V6 that now has a V8 in it and the donor car is a 94 V6 3.8L. Will all parts fit up??
     
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  11. davis3

    davis3 Active Member

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    the bellhousing on the auto tranny is intergated with the tranny.to put the v6 manual tranny in your car you need a 94-95 v8 manual tranny bellhousing.
     
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  12. '66 coupe

    '66 coupe Founding Member

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    Yes. If you have the T5 out of the V6 it will bolt right up.

    http://www.mustang50magazine.com/howto/4361_v8_engine_swap/index.html
    Check out the parts list at the bottom of the page. Note that Bellhousing is not listed. They used the V6 housing because the bolt pattern is the same.


    NO!!! This is only the case if the V6 T5 didn't come with a bellhousing at all.
     
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  13. drakesdad

    drakesdad New Member

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    wow....did not know this...I've been searching for a salvage 5.0 for some time...I guess I can add a salvage 3.8 and use all parts except the ecu...hmmmmmmmmm
     
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  14. BlueBomber

    BlueBomber New Member

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    ok so i hope you're right 66 coupe. So many weird answers tho that it's not very comforting. lol I'll try to research it further.
     
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  15. '66 coupe

    '66 coupe Founding Member

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    LOL...I can definately see the problem you're having trying to decide who to believe. I even did a search on Google and found a thread where someone told someone else that the bellhousing won't work. I guess it's a common assumption. I mean how many 5.0 owners have ever messed with a V6?

    The only reason I've been able to compare is because I helped my old roommate swap a '98 3.8 into '94 Mustang, and my GT40P engine was sitting on a stand 3 feet away.

    Here's more sources, just in case that article and Wikipedia weren't enough:

    http://Please do not link to external forums/Detailed/25.shtml
    Like I said, the bellhousing patterns being identical is common knowledge to those who have done or looked into the 4r70w swap:
    http://www.lasotaracing.com/trannyswap.html
     
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  16. BlueBomber

    BlueBomber New Member

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    Yes i do believe you to be right. I mean... my V6 was bolted to my automatic and then the V8 bolted straight to it....meaning that the bolt pattern would have to be the same.
    Would you know if the ECU would need to be changed or will it work anyways? Or can i burn my chip for it or something??
     
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  17. SorsCode

    SorsCode New Member

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    The V6 Bellhousing will mount up to the engine without a problem. The problem is when you put your starter on it will not touch the Flywheel. Reason being is because the V6 5spd cars use a 164 tooth flywheel while the V8's use a 157 tooth flywheel.. Now you could either find a 164 tooth flyweel with the right imbalance or get a 94-95 Stock Bellhousing.

    I've done enough swaps I know the differences between almost every part from V6- V8
     
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  18. '66 coupe

    '66 coupe Founding Member

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    So if he bolted a V6 AODE onto the 5.0, what flexplate and starter is he running now? Is there no difference between a 5.0 flexplate and 3.8?
     
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  19. reddy351

    reddy351 New Member

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    SorsCode has it right. The 3.8 is technically a "lopped-off" 302/5.0. So the bolt patterns are the same. The difference is in the flywheel diameter. (Good luck finding a 164 tooth/5.0 imbalance flywheel.) The 164 tooth fw was used in trucks, for the most part, because a larger diameter clutch could be fitted. You could prolly get one from a truck with the manual trans and the "post 1983 302" and use the 3.8 bell. It really would be simpler to get the bell from a 5.0l Mustang.
     
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  20. SorsCode

    SorsCode New Member

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    In this case just use the stock V8 Flexplate which is 164tooth.

    94-95 5.0L 5spd: 157tooth Flywheel
    94-95 5.0L Auto: 164tooth Flexplate
    94-04 3.8L 5spd: 164tooth Flywheel
    94-04 3.8L Auto: 164tooth Flexplate


    As you see this is why you can mount a V6 Auto behind a V8 with no modifications but when you want to use a 3.8L Bellhousing you need a different flywheel. Because the 3.8L bell is made for a big flywheel than the GTs.
     
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