Never know what might turn up - NOS 750 Holley

[GrabberOrange69]

So I got this with some other parts, pretty cool score. You'll recognize the classic box, NOS, late 80s 4160 750 Holley, never had fuel, still has the ink stamps and tags. Its a keeper:

 

[71dodgechargerrt]

Nice find.

 

[ckessel]

Looks like a 3310.

 

[RemCharger]

Nice. Up here we call that a 4150

 

[ckessel]

3310 is the specific LIST number of the unit. It could be a 3310-1, 3310-2 etc depending on revisions. When you order parts, that LIST number is critical to get the correct items. 4150's look similar but have a metering block for the secondary side, as opposed to a jet plate with fixed orfices for metering. 4150's are what the double pumbers are based from. 4160's have a metering block for the primary and the jet plate on the secondary. They can have center inlet or side inlet bowls. 4150's mostly came with center inlet bowls. Since the one in the picture is center inlet, manual choke, vacuum secondary makes me say it's a 3310. Those are universal 750's w/vac secondary and manual choke. Your common fuel line units, chrome etc, are particular to the 4150 or 4160 configuration as there is a center to center difference in length on the fuel inlet fittings. They don't interchange.

 

[Budnicks]

Holley Four-Barrel 4150 and 4160 Carburetors Explained

Explanation of the identification and differences between a Holley 4250 and 4160 carburetors.

www.holley.com

 

[GrabberOrange69]

yep, no metering block on the secondary, so 4160.

And ckessel, you’re correct 3310; 3310-2, 0088 build to be exact, so not as juicy as the original run, but still good 35 years later. I like the slot fuel bowl screws and that era of bowls, plus the zinc dichromate finish (or whatever it is.)

Im just old school.

Finding stuff like this puts a smile on my face for a week!

 

[RemCharger]

http://[URL]https://www.holley.com/...-barrel_4150_and_4160_carburetors_explained_/

[/URL]

Nailed it