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Motorcraft 2100 on a 258? (Read 1426 times)
bikemaker
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Motorcraft 2100 on a 258?
07/21/08 at 23:42:44
 
Hi guys,
 
I'm sure this has come up before but I haven't seen it addressed.  I just read on a jeep site where people were suggesting that someone replace his Carter YF with a Motorcraft 2100/2150.  Can you do this?  Do you need adaptor plates?  Who has tried it and what was the result?  
 
Mike
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Mike
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Re: Motorcraft 2100 on a 258?
Reply #1 - 07/22/08 at 22:58:41
 
a lot of jeepers do it with a 1bbl to 2bbl adapter - do a search on the jeep forums
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bikemaker
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Re: Motorcraft 2100 on a 258?
Reply #2 - 07/23/08 at 04:04:52
 
All right.  I'll do some research and let you guys know what happens if I do try it.  I'm moving next weekend so it may be a while.
 
I generally avoid Jeep sites because I find a lot of the guys to be a**holes.  I don't think I've seen anyone really slam a newbie on this forum for asking newbie questions.  But on some of the other sites, watch out if you ask something that they think is a dumb question! Shocked  
 
Mike
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Re: Motorcraft 2100 on a 258?
Reply #3 - 07/23/08 at 14:20:13
 
I think I have that carb adapter somewhere.  If I had a measurement of the two patterns I could tell you for sure.
 
Bob
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bikemaker
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Re: Motorcraft 2100 on a 258?
Reply #4 - 07/24/08 at 17:57:04
 
Hey, that's awesome Bob, thanks!  And you're a nice Jeep guy to boot! Wink  Sorry about slamming the Jeep crowd.  I know they can't all be bad, but guys on some of those boards are nasty!
 
Like I said I'm moving this weekend so it will take me a few days to get back to you on measurements, but hold tight, I will get back to you as soon as possible.  
 
Mike
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Chris in Idaho
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Re: Motorcraft 2100 on a 258?
Reply #5 - 12/23/08 at 04:37:46
 
I did this swap on a YJ I had.  It wasn't running worth a darn with the original 2BBL Carter BBD (not knocking the carb, just mine) and I got a Motocraft 2100 from a salvage yard and never looked back.  I also did a general de-smogging/cleanup at the same time so I can't tell you for sure that the carb swap alone fixed the problems.  I haven't looked for an adapter to put the MC2100 on a single barrel intake, but for the 2bbl they're very common.  The MC2100 fits the "Holley 2BBL" pattern.
 
Another good (maybe better) swap is to put a GM TBI throttle body on your 258.  Email me if you'd be interested in an adapter plate for this.
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