Holley 4300 or 4300D

[RC92234]

1973 ‘vert,  Q code. Am trying to figure out what Holley/Motorcraft carb I ha e. No markings whatsoever and I’m hoping to not have to remove it just to get a look at the bottom. 99.9% sure it’s stock, whatever stock was.

I did find this from a previous post (from ‘12) that seems to infer all ‘73s with the 351 were 4300D. But that makes no sense (2v / 4V).

https://www.7173mustangs.com/thread-what-carb-w-stock-manifold?page=1

 

[TommyK]

1973 ‘vert,  Q code. Am trying to figure out what Holley/Motorcraft carb I ha e. No markings whatsoever and I’m hoping to not have to remove it just to get a look at the bottom. 99.9% sure it’s stock, whatever stock was.

I did find this from a previous post (from ‘12) that seems to infer all ‘73s with the 351 were 4300D. But that makes no sense (2v / 4V).

https://www.7173mustangs.com/thread-what-carb-w-stock-manifold?page=1

All 73 4V's came with the 4300D.

In short if you have a squarebore it is a 4300. If spreadbore 4300D

 

[RC92234]

1973 ‘vert,  Q code. Am trying to figure out what Holley/Motorcraft carb I ha e. No markings whatsoever and I’m hoping to not have to remove it just to get a look at the bottom. 99.9% sure it’s stock, whatever stock was.

I did find this from a previous post (from ‘12) that seems to infer all ‘73s with the 351 were 4300D. But that makes no sense (2v / 4V).

https://www.7173mustangs.com/thread-what-carb-w-stock-manifold?page=1

All 73 4V's came with the 4300D.

In short if you have a squarebore it is a 4300. If spreadbore 4300D

Thank you.

 

[Hemikiller]

You can check the carb identification by the stamp on the baseplate, by the driver's front bolt hole.

 

[RC92234]

What angle is this taken from? The carb appears to be detached. There is nothing in my carb that looks a thing like even the surrounding pieces. Do I need to pull the carb to find it?



flip die

 

[Don C]

I believe you're pointing the camera in the right direction, just need to get a little lower so you can see under the throttle position solenoid.

 

[RC92234]

Aye carumba!  Thank you.  How did we ever get by without help from the internet and phone cameras that could be stuck places your eyes could not go that take images that could be blown up to show *exactly* what you need?  LOL

So, we all agree we can see the ID is 3ZF MA?  Just checking my eyesight

 

[Don C]

That would be a Motorcraft 4300D spreadbore.