Holley Carb ID

[gzig5]

Anyone know what model Holley this might be? It's a vacuum secondary, only has one removable metering block, idle air adjustment on the primary only. There is no choke and far as I can tell, it never had a choke mechanism. I find that odd because the top of it looks like a race type carb, yet it's vac secondary and single metering block which seems more street oriented. I asked and there are no ID numbers on it.

 

[qkcuda]

Looks like a 4160 carb that has had the choke horn milled off.

 

[mopowers]

What do the venturi and throttle bores measure?

 

[RustyRatRod]

It's probably an old 3310 750.

 

[gzig5]

What do the venturi and throttle bores measure?

No idea, not in my possession. Trying to figure out what it is in order to justify the drive to look at it.

 

[jeff alder]

Holley 3310-6 vacuum secondary Carburetor 4 barrel performance racing hot rod | eBay pics for comparison

 

[gzig5]

Holley 3310-6 vacuum secondary Carburetor 4 barrel performance racing hot rod | eBay pics for comparison

That pretty much looks like it, minus the choke horn. They did a decent job of blending the edges of the cut. Maybe I'll go take a look. From what I've read the 3310 is a pretty decent carb. May not be able to use it right away but not a bad thing to have on the shelf if I can get it bought well. Get it cleaned out and a fresh gasket set in it.

 

[jeff alder]

That pretty much looks like it, minus the choke horn. They did a decent job of blending the edges of the cut. Maybe I'll go take a look. From what I've read the 3310 is a pretty decent carb. May not be able to use it right away but not a bad thing to have on the shelf if I can get it bought well. Get it cleaned out and a fresh gasket set in it.

WTH why not. It's always interesting to try different carbs and see what they do. I wouldn't pay much for it though you can get one on ebay for 50 bucks. A really beautiful rebuild for 200. It was cool you recognized it for what it was.

 

[mopowers]

Just be aware there are lots of frankenstein parts carbs out there. It could be a mish-mosh of parts from a lot of different carbs.

 

[Brooks James]

It's probably an old 3310 750.

3310
That thing is in some Hall of Fame's as one of the most significant parts of the era 60's- 70's

 

[Newbomb Turk]

Those early 3310’s had metering blocks so they are 4150’s.

That is a 4160.

The early ones were about close enough out of the box to work very well on most stuff.

 

[RustyRatRod]

Those early 3310’s had metering blocks so they are 4150’s.

That is a 4160.

The early ones were about close enough out of the box to work very well on most stuff.

They were classified as a 780 if they had the rear metering blocks. But yeah, same carburetor. This one is a 750, though, I do believe.

 

[Brooks James]

Those early 3310’s had metering blocks so they are 4150’s.

That is a 4160.

The early ones were about close enough out of the box to work very well on most stuff.

Early ones Double pump or vac sec ?

 

[RustyRatRod]

Early ones Double pump or vac sec ?

All 3310s were born vacuum secondary. Every single one.

 

[Newbomb Turk]

Early ones Double pump or vac sec ?

Vacuum secondary

 

[33IMP]

Pretty sure the original 3310s were 4150, two metering blocks and v/s. From about 3310-2 on up to wherever they are now, ( 3310-23?) they were 4160s, with a rear metering plate.
Cathedral fuel bowls mean it's probably a 3310- 2 or later.

 

[Brooks James]

Pretty sure the original 3310s were 4150, two metering blocks and v/s. From about 3310-2 on up to wherever they are now, ( 3310-23?) they were 4160s, with a rear metering plate.
Cathedral fuel bowls mean it's probably a 3310- 2 or later.

I think the older 3310 on my Dart has two blocks

 

[mbaird]

Post the numbers from base plate , throttle body and metering plates . I have a Holley list book and can look up the applications tomorrow. I have done that before on carbs with choke horn milled off.

 

[mbaird]

Or you can google the numbers