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Holley carb question with pic #2821486
09/16/20 11:52 AM
09/16/20 11:52 AM
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Mopar1970440 Offline OP
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What are the items on the front fuel bowl with the arrows pointing to them? I've had a lot of 4150 series Holley carbs but not one with a fuel bowl set up like this. Model number is 3310 on this carb. thanks

HOLLEY.jpg
Re: Holley carb question with pic [Re: Mopar1970440] #2821500
09/16/20 12:14 PM
09/16/20 12:14 PM
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jlatessa Offline
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Looks just like the center bowl on 70-71 six packs, but may be used on others too.

The flap in the center is a bowl vent, the pipe coming out of the side I think goes to
the muti-orificed? breather on the valve cover??? Part of the cleaner air system spaghetti?...been a long time....

Joe

Last edited by jlatessa; 09/16/20 12:20 PM.
Re: Holley carb question with pic [Re: jlatessa] #2821515
09/16/20 12:39 PM
09/16/20 12:39 PM
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Yup, bowl venting, and looks like an OEM application, likely GM or Ford.
I don't recall an OEM Mopar application for a 3310.
Google the list # , you may have something valuable there.

Re: Holley carb question with pic [Re: topside] #2821530
09/16/20 01:17 PM
09/16/20 01:17 PM
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South Bend
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The first 3310 was used on 1965 SS396 Chevelles. Only 201 of them were produced, and the oem 3310's had different float bowls (a different mold than the ones used on cathedral float Holley carbs now) and a different stamping format for the date on the air horn.


July 19th should be "Drive Like Rockford Day". R.I.P. Jimmie.
Re: Holley carb question with pic [Re: John Brown] #2821535
09/16/20 01:32 PM
09/16/20 01:32 PM
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Western Colorado High Desert
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Originally Posted by John Brown
The first 3310 was used on 1965 SS396 Chevelles. Only 201 of them were produced, and the oem 3310's had different float bowls (a different mold than the ones used on cathedral float Holley carbs now) and a different stamping format for the date on the air horn.


Yep


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Re: Holley carb question with pic [Re: topside] #2821562
09/16/20 02:11 PM
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Mopar1970440 Offline OP
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choke tower reads " LIST -3310-1" and under that is "1293" im told the 1293 is the date code and 4 digit date code wasn't used until 1973. I see no OEM manufacture type numbers. I was trying to find out if this was a desirable carb with an OEM application but doesn't look like by the numbers im coming up with. Looks to be a universal 750 vac secondarys.

Re: Holley carb question with pic [Re: Mopar1970440] #2821570
09/16/20 02:30 PM
09/16/20 02:30 PM
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Originally Posted by Mopar1970440
choke tower reads " LIST -3310-1" and under that is "1293" im told the 1293 is the date code and 4 digit date code wasn't used until 1973. I see no OEM manufacture type numbers. I was trying to find out if this was a desirable carb with an OEM application but doesn't look like by the numbers im coming up with. Looks to be a universal 750 vac secondarys.


Someone told you wrong. This is a picture of my oem 69 a12 carb with a 4 digit code of 0729. That could be a bowl from a mid 70 six pack. I’ve got lots of them. That has a newer plastic vacuum secondary cover.

146FD580-EC02-4D78-BD98-944A2F15B62A.jpeg
Re: Holley carb question with pic [Re: fastmark] #2821573
09/16/20 02:40 PM
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Maybe it was assembled long ago from multiple parts laying around at the time ?
IIRC, the plastic diaphragm cover is a later thing, I think 1980s ?
Which would be past the time of OEM application.
But it could have been replaced, too.

Re: Holley carb question with pic [Re: topside] #2821577
09/16/20 02:46 PM
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Is there a way to verify if the front bowl is something desirable? as in from a 6 pack car etc?

Re: Holley carb question with pic [Re: Mopar1970440] #2821591
09/16/20 03:13 PM
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jlatessa Offline
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Also looks like a manual choke set-up.
The driver's side linkage is foreign to me too.

Joe

Re: Holley carb question with pic [Re: jlatessa] #2821612
09/16/20 04:10 PM
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Originally Posted by jlatessa
Also looks like a manual choke set-up.
The driver's side linkage is foreign to me too.

Joe


The linkage looks like typical 3310 with large hole in shaft as GM.I would "assume" it's a early 3310 with a 70 or later bowl.

P3120736.jpg
Re: Holley carb question with pic [Re: jlatessa] #2821614
09/16/20 04:12 PM
09/16/20 04:12 PM
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South Bend
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Originally Posted by jlatessa
Also looks like a manual choke set-up.
The driver's side linkage is foreign to me too.

Joe


That's because it's a hodge-podge of a Chevy throttle arm and a Ford style kickdown linkage. Why Holley chose that combination we'll likely never know, but that was how they rolled on aftermarket 'universal' carbs. And, Chevy Holley carbs used the three digit date codes while the Mopar Holleys used the four digit date codes. Another mystery we will likely never know why.....


July 19th should be "Drive Like Rockford Day". R.I.P. Jimmie.
Re: Holley carb question with pic [Re: Mopar1970440] #2821615
09/16/20 04:14 PM
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S.E. Michigan
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3310-1 has downleg boosters and was rated 780cfm.

3310-2 (and up) has straight boosters and was/is rated 750cfm.

None of them used the primary bowl shown. The bowl shown definitely came from another carb.

The weird looking linkage addition on the driver's side is for ford kickdown, like many of holley's universal carbs have had
over time. This could help explain: https://www.holley.com/blog/post/se...kickdown_when_using_a_holley_carburetor/



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Re: Holley carb question with pic [Re: Mopar1970440] #2821651
09/16/20 06:12 PM
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Original 3310-1 carbs have a following so you can sell it on ebay even if the front bowl is wrong. Someone will want it even if it is just for parts.





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