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motorcraft 4300d
#1
Hey do any of you all known if the 4300d carb. is a 750 cfm or 715 cfm carb. like ford said are is it a 605cfm.I have a D2ZF-AA would this be a 715 or 750 carb.also if anyone has a untouched Boss 351 or 351 HO with the original carb. and intake can you post a picture? And was the H.O.intake a spread bore cast iron intake.Thanks
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#2
Here you go...carb was for...

72 351CJ Mustang (w/MT) exc/Calif.

4v 605 cfm

7/8" fuel inlet

Manual Trans

Jeff
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#3
jeff8877;128731 Wrote:Here you go...carb was for...

72 351CJ Mustang (w/MT) exc/Calif.

4v 605 cfm

7/8" fuel inlet

Manual Trans

Jeff


I believe the 4300D (spreadbore) came out w/ the '71 351CJ mid yr engine & had a higher CFM (750?) than the 4300A (605CFM squarebore). 4300D also saw service on 460 engines.
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#4
See this article

http://mustangtimes.net/33-11/pg48-50.pdf

They sat 715 cfm

-john
(jbojo)
351C 4V cc heads, 10.5 : 1 CR, 290 Herbert cam, Flat top forged pistons, forged connecting rods, Atomic efi,
C6 with Gear Vendor overdrive, 3.89 Tru Trac, Hooker Super Comp with 2 1/2" Pypes Exhaust.        

Some Mod pictures can be seen at:

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#5
The best information I have says 715 cfm. The 72 HO intake was aluminum. Chuck
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#6
This would be well worth the $8.00 price. http://www.carbkitsource.com/manuals/car...CM089.html
Chuck
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#7
Yup, 715 cfm.. 4300D was fords "autolite/motorcraft" bad boy carb of the time and quite the odd ball..I have my original 4300D still, same carb they used in 73 q codes too...Mine come with a spread bore cast iron intake that only works with a 4300D carb....Carb is in my parts room, but the intake is in storage unit thou.
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#8
I have a 4300D Spreadbore w/factory cast iron intake on my 72 Q code Mach 1. As far as I know the 4300D is a 715cfm carb.

run_horse Run Horse Run!
John 72 Q Code
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