carb identity

[coronet340]

what is this? i'm 90% sure it is a carburetor. maybe a holley? lol. all jokes aside, can anybody i.d. this carb from the pic? i know it has a manual choke. i would like to upgrade one day but as of right not just trying to get everything going.
is it worth rebuilding or should i just move on? its sitting on top of a LD4B intake (which i also plan on upgrading, possibly to a duel plane but still learning about all that). that in turn is sitting on top of a 340 with a full rebuild and fresh cam (that i have no idea whats inside this motor, all done by P.O. to the P.O.)
is this adequate? or should i upgrade both the intake and carb now.
thanks!

 

[Xp29h]

Are there any stamped numbers on it? Maybe under stickers(?) on horn in pic 1 and 4.

How ow does it run now? I have found trust nothing! You never know what p.o's have done. Take nothing for granted! I'm in that situation now and it's been a ride.

Dual plane and single plane intakes are different obviously. Depends on where you're going with your car, driver, street, strip or flat out racing.

Maybe someone will be able to ID.

 

[ZombiePopper]

Its a holley 4150 or 4160 carb from the looks, is it vaccum or manual seconds? I'm guessing double pumper. Pull the sticker off the choke tower there will be stamped #'s on it to I'd it for sure.
the Eddy LD intake is a dual plane and a good intake, there are some better intakes but there are also worse intakes then the LD.

 

[67 coronet]

more then likely its a holley 3310 750 cfm vacuum secondary carb.very popular old school upgrade back in the day.it should be perfectly rebuildable and will work fine on your motor.

 

[coronet340]

Are there any stamped numbers on it? Maybe under stickers(?) on horn in pic 1 and 4.

How ow does it run now?

Dual plane and single plane intakes are different obviously. Depends on where you're going with your car, driver, street, strip or flat out racing.

it idled and would rev but i never drove it cuz the car was a mess. all the wiring is fucked and i had to start it with a screwdriver.
it'll be a driver/street. very rarely the strip.

- - - Updated - - -

Its a holley 4150 or 4160 carb from the looks, is it vaccum or manual seconds? I'm guessing double pumper. Pull the sticker off the choke tower there will be stamped #'s on it to I'd it for sure.
the Eddy LD intake is a dual plane and a good intake, there are some better intakes but there are also worse intakes then the LD.

i just learned vaccum/manual secondaries last week but have no idea how to identify them yet.
i'll pull the stickers off in the morning. thanks!

- - - Updated - - -

more then likely its a holley 3310 750 cfm vacuum secondary carb.very popular old school upgrade back in the day.it should be perfectly rebuildable and will work fine on your motor.

they still sell rebuild kits for these? can i tackle it on my bench or let a pro do it? i can rebuild dirt bike carbs but never messed with something this big.

 

[Xp29h]

Rebuild kits are definitely available. Many places have them. Your local store, summit racing etc. once we know the numbers,you can get the specific kit.

vacuum secondaries are identified by that enclosure right behind where the electric choke would go. Pic #3 towards the left in the pic.

starting with a screwdriver, ouch! Yeah you want to get that all straight befor the drives begin. Good luck. Let us know the numbers when you get to them.

 

[ZombiePopper]

more then likely its a holley 3310 750 cfm vacuum secondary carb.very popular old school upgrade back in the day.it should be perfectly rebuildable and will work fine on your motor.

The *3310-2 to 6 IS a 4160 (750cfm vac seconds)
(*3310-1 is a 4150 780 cfm man seconds.)

 

[Xp29h]

Here's a few of pics of number locations, mechanical secondaries and double pumper info. Notice difference from yours. This is a Holley 650 com double pumper. Look for Philips head screw with jets underneath in opposite than the choke flap. If double pumper, there will be jets under choke and on other side like one here. If single only under choke flap.

this one needs a good clean and rebuild!!

anyone, please correct if I'm wrong on the double pumper id!

 

[coronet340]

guessing this rebuild kit should work?
https://www.holley.com/37-119.asp

 

[ZombiePopper]

You need to pull that sticker and look at the #'s to verify the exact carb you have, BEFORE buying a kit.
to ID a double pumper real quick/easy, just flip the carb over, if its a double pumper it'll have an accelerator pump under each float bowl (2), if vac seconds it'll only have 1 and a vacant spot under the other float bowl.
here's a pic; carb on the left is vac seconds and carb on the right is a double pumper.

 

[Meep-Meep]

What you have there is a very late carb and it sure looks like a 750 CFM 3310. But scrape off the sticker to be sure. The LD4B is a good intake and I'd clean it up and use it. The carb will be a bit big for a stock engine and I will suggest a 600 CFM to replace it.

 

[coronet340]

What you have there is a very late carb and it sure looks like a 750 CFM 3310. But scrape off the sticker to be sure. The LD4B is a good intake and I'd clean it up and use it. The carb will be a bit big for a stock engine and I will suggest a 600 CFM to replace it.

the engine isn't stock. like i said i dont know whats in there. but i've looked in there and everything from the cam below is fresh. i dont think its ever been down the road. and i'm not a mechanic but just hearing it when it did run it sounded a lot beefier. and theres a pretty large lobe in the cam.

 

[bigmanjbmopar]

Well heck I'll throw my 2 cents in here, that is a 3418 carb originally for a 66-67 chebby corvette, I would say throw some holy water on it to make sure it doesn't spread the GM disease to the rest of your car, then go out and but a QFT

Looks like vac sec, and missing some of those vac parts. good luck but I wouldn't run that you could sell it to the vette crowd they will go bananas for it say $250?

oh by the way that could be up to an 855 CFM carb lol mostly found on the 425 hp L88's. Then again I could be completely off base and if so never mind.... <


http://books.google.com/books?id=oV...Bw#v=onepage&q=holley 3418 carb specs&f=false

 

[Garys1969RR]

That is definitely a vacumn secondary, as identified by the 3rd picture from top in #1. The large canister with the rod sticking out the bottom is the secondary actuating diaphragm. Looks to be a 750 CFM. My son has one just like it on his 383. Also, you dont have a metering block in the sec, but a metering plate is used there. The 3310 is actually a 780 CFM. I have one on my 451, and they have a secondary metering block as opposed to a plate. Mine also has down leg boosters. That carb in the pics has straight leg boosters.

- - - Updated - - -

Get the list number off the choke housing, and you can look it up on the Holley website. They will list all stock jetting, power valves, and CFM rating for each carb.

 

[moparmarks]

That's looks like a mid 3310. 3310-2 or 3. Is vacuum secondary's but has the earlier metal cover, not the later plastic one. Same with the manual choke, metal not plastic. Having a secondary metering plate instead of a block makes it a 4160. 4150 had secondary metering block. Is a single pumper.
Pull the stickers and I'm betting it's a 3310-2 or 3.

 

[ZombiePopper]

That is definitely a vacumn secondary, as identified by the 3rd picture from top in #1. The large canister with the rod sticking out the bottom is the secondary actuating diaphragm. Looks to be a 750 CFM. My son has one just like it on his 383. Also, you dont have a metering block in the sec, but a metering plate is used there. The 3310 is actually a 780 CFM. I have one on my 451, and they have a secondary metering block as opposed to a plate. Mine also has down leg boosters. That carb in the pics has straight leg boosters.

- - - Updated - - -

Get the list number off the choke housing, and you can look it up on the Holley website. They will list all stock jetting, power valves, and CFM rating for each carb.

I hate to call ya out on this, and I mean no offense, but this info is incorrect, (according to the info I have) ONLY the orig 3310 and 3310-1 are a 780cfm 4150 (double pumper), as you said, lack of a metering block on the seconds indicates it as a 4160 vac seconds, therefore IF its a 3310 it'd be -2 to 6 making it 750cfm.

 

[moparmarks]

I guess it could be a newer one. They went back to the metal parts around 2004.
As per my Holley spec book.
3310A 780 4150 D/P used on 65 Chevy 396 425HP. Very hard carb to find.
3310-1AAA 780 4150 D/P universal.
3310-2AAA 780 4150 S/P Vac Sec. universal.
Its an older book and stops there but I think the 3310-3 went to the 750 cfm.

 

[ZombiePopper]

Everything I have says only the original 3310 and -1 were 4150 780cfm, after that the boosters changed and went to a 4160, vac seconds, 750cfm,
but maybe my info is incorrect....

 

[bigmanjbmopar]

I zoomed into the pic of that sticker an it say 3418.

 

[ZombiePopper]

I zoomed into the pic of that sticker an it say 3418.

If that's the case, Then she's an oddball mix/match carb, cause the 3418 is a 4150, 855cfm double pumper, and the pics look like a 4160 to me...
coronet340, pull that sticker and let us know what she is! Lol