Holley Carburetor ID

[dlrshort]

I haven't been able to ID this 4 BBL Holley. Numbers are:

80457-1
with a date code:
0238

Any help would be appreciated.

 

[dlrshort]

Thanks 'D',

I assumed it was an aftermarket carb, and it is correct for my car, however, I found a dated one that I'm trying to get.

Is there anyway to find out what the '8' represents. I am assuming since it is a 4 digit dating code, the '8' could be 1978, 1988 or 1998?

Dave

 

[dlrshort]

D,

Are there any performance differences between the aftermarket and an original dated carburetor?

In otherwords, aside from originality, are there any advantages to having a correct dated carb for my '66?

Dave S.

 

[JohnZ]

The 80457-1 is the second design "universal" aftermarket 600CFM Holley 4160 with an electric choke, vacuum secondaries, single fuel inlet, and side-hung float bowls. It's a replacement for the 585CFM Holleys used originally on 327's from '64-'67. The date code says January 23, 1998 (this carb was only introduced six years ago); the current versions have a bright zinc finish. Good all-around replacement for the 2818, 3367, 3605, 3810, and 3814 original Holleys that have become very expensive since.

Correct dating doesn't mean much without the correct List number that goes with it; the only advantage to the original correct list number/date carburetor is for judging. Functionally, the 80457 will work just fine.

Original/correct midyear Holleys are the List numbers shown above, and they'll have three-digit date codes; any Holley with the correct List number and a four-digit date code is a service replacement made after 1970.

 

[dlrshort]

Thanks, John, that's what I thought. The car runs fine except the choke is very tempermental.

 

[JohnZ]

It sometimes takes some fiddling with the adjustment (turning the cover one index mark at a time toward "Rich" for more choke or toward "Lean" for less) to get it the way you want it; just make sure it's getting a full 12 volts (not the reduced 7-8 volts the coil + terminal has if that's where you have it connected). I've used lots of Holleys with electric chokes on project cars, and they've worked out fine once I found the adjustment each engine liked.