hollley carb #s

[kustom]

hi we have a 86 motorhome build on the e 350 chassie and need a new carberator
mfd by holley for motorcraft
tag imfo
motorcraft
e 5 h e e d
a 6 f 2 5
i called holley but they dont known what thesse # mean there ford #
does any one known what thesse mean ?
holly teck said buy a 600 model 0-80457s his best guess but dont want
to buy the wrong carb. hope someone can help thanks john

[whem2fish]

If it was original true holly carbs had a 4 digit number what size motor do you have?

[kustom]

hi its a 460 motor c6 auto 86 ford e 350 31 ft with tag they are all the #
i have. holly teck said to look for other #s but i am a long way from motorhome trying to buy parts to fly out and fix hope some one can help thanks or who has changed to a better carb say eldebrock ?
thanks john

[whem2fish]

Looking at the front of the carb top where choke mounts it will be 76xx a 600 CDMA is small maybe 7679 or 7680 that would be a 750 or 800

[C-Leigh Racing]

Your going to need every number you can find on that carb, before you can even think about buying another one or getting some help to find out which it is.

More than likely it is a 600CFM Motorcraft carb & you'll need a replacement as perfect a match to the one on the engine as you can get. You could get a 600 Holley to go back on, but it being a perfect match to what your taking off would be a long shot.

Go over to http://www.460ford.con & ask over there, them guys know a 460 Ford big block from one end to the other.
Neil

[Nick-B]

Why not have the original carb professionally rebuilt? You will have the right carb of the right CFM with the right jetting.
I've been down the replacement and off-the-shelf "rebuilt" carb path too many times over the years and it isn't worth it. You don't know what you will end up with and how much adjusting and jet changes, etc to get it to perform properly.
Just my 2 cents . . .

[whem2fish]

Agree rebuild it a 460 will need cfm

[stink]

If you do not have emission testing in Costa Rica you can replace with an off the shelf Holley 750 cfm carb. Just insure vacuum secondary's. They all come with ford linkage and need to be converted for Chevy. You can get one from internet speed shops like Summit racing or Jeggs.

[kustom]

hi where do you get a carb professianally rebuilt ?? the motorhome is
stored in fl. do you mail it someplace ? how long would it take ?
yes i am in costa rica but motorhome is keep in fl.
thanks john

[C-Leigh Racing]

Originally Posted by Nick-B

Why not have the original carb professionally rebuilt? You will have the right carb of the right CFM with the right jetting.
I've been down the replacement and off-the-shelf "rebuilt" carb path too many times over the years and it isn't worth it. You don't know what you will end up with and how much adjusting and jet changes, etc to get it to perform properly.
Just my 2 cents . . .

Nicks right, in all my years with grease on my hands, I've never seen a straight out of the box carb work right, will be some adjusting before it is bolt on.
I'll 2X the "rebuild" the one on the engine first,,,,, by a mechanic knows what they are doing.
Keep in mind as well, larger you go in the CFM on a carb, higher rpm range your trying to make it operate, so about a 650 should be right for the job that 460 engine has to do.
Neil