motorcraft vs. holley 2bbl??
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Senior User
Joined: Nov 2004
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motorcraft vs. holley 2bbl??
ive got a 81 f-100..with a 302 3spd auto. I just rebuilt the motor, and it runs pretty good...but im sure i could be getting better performance from my stock motorcraft 2150 2bbl. I know it needs a rebuild, because of the hard starting...unsteady idle, etc. But i would prefer buying a new carb, and maybe rebuilding the one i have already for fun when i have time. If i do go for a new carb, it wouldnt be anything big...maybe even a new or professionally rebuilt motorcraft 2150. But i heard Holley made a carb as a replacement for the motorcraft. What would be the differences between the motorcraft and the holley? difference in power? Mpg? reliability? price?
Any suggestions would be great..thanks
p.s the 302 is mostly stock besides an Rv cam, headers and 3'' exhaust.
Any suggestions would be great..thanks
p.s the 302 is mostly stock besides an Rv cam, headers and 3'' exhaust.
Fleet Owner
Joined: Jan 2004
Posts: 26,007
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From: Brentwood,CA
use the motorcraft. very simple,reliable and lasts a long time. the 2100 is a well designed carb, the off road guys use it and like it better than most 4bbl truck carbs. the kit is cheap only 12.00 to rebuild them and they have no gaskets to leak below the air horn like on a holley.
Its Comin Right for us!
Joined: Feb 2005
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From: GA
look on the drivers side of the carb and look for a number like 1.08, or 1.21 etc...that will tell us the size of the venturi's and the cfm...that would affect my descision if it was mine
if it turns out to have enough cfm, i would use it over the holley
if it turns out to have enough cfm, i would use it over the holley
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i just went out and checked my carb...its a 1.08- 287cfm. Ive decided to go with the motorcraft, but cant decide between the 287 or the 350 cfm. How much of a difference would these two carbs make for power and gas mileage? any thoughts appreciated.
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Fleet Owner
Joined: Jan 2004
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From: Brentwood,CA
your 302 is pretty stock. 350 cfm is more than enough. too big you will loose low end torque. finding a 350 cfm 2100 carb is hard few were made. i found one on a 400 in a 72 station wagon.
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From: The Big, Oregon
A 350cfm would be much better than the 287. I ran a 350 on my 300-6 with an Offey intake, and it was fine clear up to 5500rpm. These carbs were usually on 360/390s and 351m/400 trucks, from 68-82. I have heard that the earlier ones had problems with casting porosity, but I haven't been able to confirm that.
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Joined: Jul 2003
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From: alaska
this forum is full of ' problems with rebuilt motorcraft carb', or'problems with rebuilding motorcraft carb' , if you have a choice between a new holly or a rebuilt motorcraft, especially if you are rebuilding it yourself and dont have a lot of experience , I would go with the Holly. you can get 'lucky' with your rebuild , if the motor craft has never been overheated , etc......... my 2c's,bob
FTE Legend
Joined: Nov 2015
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From: Angier, NC
Now what maybe an issue is any transmission linkage that hooks to the carb.
BTW you know this post was from 2005 right?
Dave ----
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I see i do have a kick down so I may have to figure that linkage out.
Thank you for answering my question.
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