What carb is this? What are my options?

[fadingfastsd]

Hey guys,
new to the forum, and relatively new to Mopar (my other Mopar was a 51 Plymouth Concord with a 218 flathead six).

I've got a 64 Barracuda, original /6 car, but the PO swapped in a 273.
My question is, what carb is this on the car? Looks like a 2 bbl, but make/model?

What are my options as far as moving up to a 4bbl/intake/ headers on this engine?

Thanks!

 

[C130 Chief]

That's a Carter BBD. Looks to be off a 73 or later 318. You's have to check the number to be sure.

As for options, bear in mind that early 273's have a different intake bolt angle than later 273/318's. Manifolds for the earlier engine are pretty much limited to the factory 4bbl (not so great) or an Edelbrock D4B (good, but getting hard to find). The later engines could use any commonly available small Mopar intake.

As for a carb, if it was a stock 273, I'd use an Edelbrock 500. If it was beefed a bit, the Edelbrock 625 would be a good choice.

 

[cavemanmoron]

I would not put headers on a 273, 2bbl engine, for street use.

Dual exhaust off the stock exhaust manifolds,
Will wake that engine up a Lot.

Headers that fit the Early Abody are expensive.

1967 and newer Abody headers that are cheaper will not work,
the engine bay is too narrow.

The stock 2bbl cam is not 4bbl friendly.

If you really just HAVE to have a 4bbl, you better find out which year
heads are on the engine you have; 1964-65 have smaller sized bolts,
to hold the intake onto the heads.Those 2 year only intakes are not easy to find.

If your lucky and have 1966 and newer heads, get an LD4B,
or factory iron intake.Use a 500 cfm Edelbrock carb.

You can listen to my dual exhaust off the stock exhaust manifolds.

http://www.youtube.com/watch?v=Ud8mci4rjFU

 

[fadingfastsd]

What exactly are the bolt differences on the intake on a 64/65 273 engine and a newer 273? I need to figure out which one I have. How do I tell?

 

[66dartgt]

That looks like a late 70's early 80's BBD. The older 273's had the intake bolts go straight down, your's are angled so its a 66 up motor. You can use an LD4B intake or other more modern LA type if you want. For headers consider spitfires, they are shorty types, and are relatively easy to install, you'll need someone to fab the down pipes, I mated mine to a TTI system. Do a search on this site for spitfires - they are made by a private individual Harold Johnson (I believe), and they cost around 250-300 a set. I have some on my 66 and like them.

 

[clhyer]

Cavemanmoron - That's a great sounding combination you have. What, exactly, do you have; engine, cam, exhaust?
Thanks1
C

 

[cavemanmoron]

What exactly are the bolt differences on the intake on a 64/65 273 engine and a newer 273? I need to figure out which one I have. How do I tell?

See if you can use a 1/2" wrench/socket on the bolts,
if so its the 1964/65 intake.

Cavemanmoron - That's a great sounding combination you have. What, exactly, do you have; engine, cam, exhaust?
Thanks1
C

Thanks for the kind words,
1973 era 318 rebuilt, stock bore, the previous engine owner was kind
to the engine, no sludge, had the block hot tanked, machine honed,
new cam bearings installed at the machine shop, crank polished.

I reassembled the engine, put in a New Mellings oil pump, Not high volume,
or high pressure. Heavy duty oil pump bushing too.

Cam is a Mopar Performance .430/.450 lift
DCC-4452759 Basic Operating RPM Range: 1,200-5,200

# 302 casting heads

Dual exhaust off the stock 1964-66 273 Abody exhaust manifolds,
they start at the stock size and are opened up to 2 1/4".

Dynomax Super Turbo mufflers
1969 340 Dart chrome tips.

I am using an Edelbrock LD4B intake, that intake was made for the 318
small sized ports, and keeps the air/fuel mixture velocity higher,
than using a large port 340 intake can.

I am using an Edelbrock # 1406 AFB replacment carb that is rated 600cfm,
a 500 cfm might be a little better, but this works fine for me.

What a joy to work on a car that was in California for almost 40 years,
before it came East.