1971 Cuda 340 Carb Info Needed

[bajazza]

I just picked up a '71 Cuda w/340 3spd. However, the carb is missing...does anyone have any info on exactly what carb I should look for ? TIA Jay

 

[Steve (archive)]

I just picked up a '71 Cuda w/340 3spd.

340 THREE speed?!? You mean 3-speed automatic, I assume. Otherwise that's not an original 340 'Cuda, but maybe a 318 or slant-6 Barracuda that's had a 340 transplant..

However, the carb is
missing...does anyone have any info on exactly what carb I should look for ? TIA Jay

ARe you interested in an exact restoration, or function?

IIRC, the 71 340s used either a Carter AVS or a Holley vacuum-secondary 4-barrel. No Thermoquad until a couple of years later on the 360. I added a cross-post to alt.hi-po.mopars and I know one of those guys there can tell you the exact carburetor number for either a manual or automatic (they're different) 71 340 'Cuda. But a good aftermarket carb that will look fairly correct would be an Edelbrock Thunder Series AVS.

 

[philthy]

buy a holley spread bore 750 cfm double pumper and it will rock your world

 

[philthy]

one of the tricks was to use was a 3 speed put of a slant six car it was a 3 speed stick bolt right in and at the strip. only had to shift twice

 

[NapalmHeart]

340 THREE speed?!? You mean 3-speed automatic, I assume. Otherwise that's not an original 340 'Cuda, but maybe a 318 or slant-6 Barracuda that's had a 340 transplant..

ARe you interested in an exact restoration, or function?

IIRC, the 71 340s used either a Carter AVS or a Holley
vacuum-secondary 4-barrel. No Thermoquad until a couple of years later on the 360. I added a cross-post to alt.hi-po.mopars and I know one of those guys there can tell you the exact carburetor number for either a manual or automatic (they're different) 71 340 'Cuda. But a good aftermarket carb that will look fairly correct would be an Edelbrock Thunder Series AVS.

I'm not sure about a '71, but my '72 Demon 340 had a Thermoquad from the factory. You might try www.allpar.com

Ken

 

[Richard Ehrenberg]

Three speed manual was, indeed, available with the 340 on '71 'Cudas. In fact it was standard equipment. 151 were built that way.

The OEM carb was a Carter 4972S; a 480 CFM AVS.

In my opinion, the car is too rare (read: valuable) to hack or modify.

Rick

 

[Richard Ehrenberg]

Sorry, I shot from the hip on carb details, that 4972S was an 800 CFM Thermo-Quad, a one-year-only type of fuel metering system, too.
Brain fart.

Rick

 

[BDK]

340 THREE speed?!? You mean 3-speed automatic, I assume. Otherwise that's not an original 340 'Cuda, but maybe a 318 or slant-6 Barracuda that's had a 340 transplant..

ARe you interested in an exact restoration, or function?

IIRC, the 71 340s used either a Carter AVS or a Holley vacuum-secondary 4-barrel. No Thermoquad until a couple of years later on the 360. I added a cross-post to alt.hi-po.mopars and I know one of those guys there can tell you the exact carburetor number for either a manual or automatic (they're different) 71 340 'Cuda. But a good aftermarket carb that will look fairly correct would be an Edelbrock Thunder Series AVS.

My friend's '73 Challenger 340 came with a Thermoquad, as did another friend's '73 340 Roadrunner.