I have a carb off of a 71 Lincoln mark 3 but not sure exactly what it is... I want to get a gasket but to get one I need the specs.

 

 

Autolite 4300.. can be had in 440, 600, and 715 cfm...

The 715 is a spreadbore where as the former are square bore carbs.

Go here: http://www.mustangtek.com/4300/4300.html

 

 

So which one do I have...

 

Go here.. again: Ford 4300 carburetors

and here: http://www.mustangtek.com/carburetor...arburetors.htm

 

 

 

Q1... is it a square bore or a spread bore? If a spread bore, then 715 cfm. If square, then it is either a 440 or 600 cfm carb.

Q2... does the carb have a clockface stamping/casting with "1.01" or "1.25"? It is usually found on the driver's side of the main body of the carb. If 1.01 then it is 440 cfm. If 1.25, then it is a 600 cfm.

Easy as pie, right?

 

Sometimes you gotta take em by the hand and touch it with em.

 

Carburetor stamped ID number D2SF-AC = Ford part number D2AZ-9510-M .. 4V Carburetor (Motorcraft CA-788-A) / Obsolete

1972 Galaxie/LTD/Torino/Thunderbird/Mercury Marquis/Montego 429.

D2AZ-9A586-D .. 4V Carburetor Kit (Motorcraft CT-226-A).

 

With the clock face not sure... I'll look later.

 

It might not have a clockface casting...

But here is more info FWIW... http://en.wikipedia.org/wiki/Autolite_4300_carburetor
According to the posted info, a square bore 4300 (OK, nearly square bore) from 1972 would make it a 600 cfm.

 

Good it'll go on my 460 until I replace the motor and build the other one

 

Looks like a Motorcraft/Autolite 4300 spreadbore. probably 600 CFM.
MrblueOval.