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Original Carter 68 383 h code carb vs a 68 440 RT Carter carb both auto with air

Started by Sixt8Chrgr, November 02, 2011, 08:16:37 PM

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Sixt8Chrgr

Do the above carbs flow the same cfm? Are they jetted the same? Any big digfferences? I have the original 383 carb for my car but put a mild 440 in the car and would like to know if I could run the 383 carb, or would I have to make several upgrades?

Thank,

Chryco Psycho

both are probably AVS carbs so the cfm will be the same but jetting & air door settings will be different

hemi68charger

I thought the 383's had 650 cfm's and the 440 had the 750 cfm's..........
Troy
'69 Charger Daytona 440 auto 4.10 Dana ( now 426 HEMI )
'70 Superbird 426 Hemi auto: Lindsley Bonneville Salt Flat world record holder (220.2mph)
Houston Mopar Club Connection

Chryco Psycho


71bee

All Carter AVS carbs originally designed for Chrysler 383 HP vehicles produced 625 CFM (same as all 340 HP carbs). the 440 HP's all came equipped with 750 CFM AVS carburetors.

Chryco Psycho


71bee

Quote from: Chryco Psycho on November 05, 2011, 07:37:11 PM
makes sense .
so yes the 383 carb will be restrictive on a 440
it sure will. you'll be starving that poor ol' 440. they made only one 625 CFM AVS for the Low Performance 440 C-body cars in 1971 (Carter AVS #4966S).  

Sixt8Chrgr