holley carb #'s ??

[460rogers]

I have a holley carb that i can't identify.
numbers on the horn
04JL-9510-J
LIST-7123
1658
number on top
6R-4920B
it is a marine carb not in my old book
what cfm?
what kit?
thanks for any help

[058]

Are you sure about the list no? A 7123 is for a Dodge and is a 1bbl. Perhaps a 7128? That would be for a 460 Ford marine and judging by the jetting would be a 750 cfm carb.

[Hotcrusader76]

It's got to be a 4128 since the 4123 is an older Dodge part number as 058 mentioned.
If it's the 4128 then it's the standard 4160 style 650cfm carburetor for Marine Fords, small 1.25" primary venturi and slightly larger secondary.
Yes there are kits out there to rebuild it but make sure you check to see if it has a fuel transfer tube between the metering block and mainbody. Often times it was installed on these marine carbs but the kits to rebuild them didn't come with it.
My advice as always get the most complete kit possible with rebuilding such a carburetor.
~Ty

[460rogers]

thanks