413 Max Wedge Carburetor Specs: Type, Size, Numbers
Let’s take a close look at the 413 Max Wedge carburetors.
The 413 Max Wedge engine was produced with two Carter AFB four-barrel carburetors, list #3447S and part #2402359. They flowed approximately 600 CFM each with 1-7/16 inch primary bores and 1-11/16 inch secondary bores.
The carburetors were mounted diagonally across from each other and provided air and fuel to the opposite sides of the engine.
Both versions of the Max Wedge, Plymouth Super Stock 413 and Dodge Ramcharger 413, used the same carburetors.
413 Max Wedge Carburetor Specifications
The table below contains the specs for the 413 Max Wedge Carter #3447S carburetor.
| 1962 413 Max Wedge Carburetor Super Stock 413/Ramcharger 413 | |
| Model | Carter AFB #3447S |
| Part Number | 2402359 |
| Barrel | 4-barrel |
| CFM | 625 CFM |
| Primary Bore | 1-7/16″ |
| Secondary Bore | 1-11/16″ |
| Main Venturi-Primary | 1-3/16″ |
| Main Venturi-Secondary | 1-9/16″ |
| Choke | Mechanical |
| Primary Jet | 120-163, .098″ |
| Secondary Jet | 120-158, .082″ |
| Metering Rods | 16-51, .050″ x .062″ |
| Float Setting | 7/32″ |
| Float Drop | 3/4″ |
| Accelerator Pump (Top of Plunger to Air Horn) | 7/16″ |
| Secondary Throttle Lever Adjustment | 3/8″ |
| Secondary Throttle Lockout Adjustment | .020″ |
| Idle Mixture-both screws open | 1 – 1/2 turns |
| Blade Angles | Primary, Vertical; Secondary, 15°-17° from vertical |
Note: Secondary blades top 15° to 17° before vertical at wide open throttle. The carburetor actually flowed approximately 600 cfm.
413 Max Wedge Carburetor List Number and Location
The list number for the 413 Max Wedge Carburetor:
- 3447S
The list number can be found in two locations.
- On the base of the carburetor, right front mounting ear.
- Build tag attached at the top cover by one of the top cover screws.
Disclaimer: As an eBay partner I may earn a commission for purchases made on eBay at no extra cost to you. This article contains an affiliate link (s) for eBay.
The carburetor below is a Max Wedge #3447SA currently for sale on eBay (Check its price and other Max Wedge carbs). The photo shows the list number and date code.
Date Code
The date code can be found below the list number on the base mounting ear.
The date code consists of a letter and number. The letter indicates the month and the number indicates the last number of the year.
For example a date code of D2 indicates the carb was built in April of 1962.
The number 2 indicates the year 1962. The following letters indicate the month:
- A-January
- B-February
- C-March
- D-April
- E-May
- F-June
- G-July
- H-August
- J-September
- K-October
- L-November
Chrysler Engineer Facts and Recommendations About the 413 Max Wedge Carburetor
The 1962 Plymouth Super Stock 413 owner’s manual states the following about the carburetors:
- Carburetors have been calibrated for maximum power. (Leaner mixtures should used at altitudes above 4000 ft.). Throttle blade angles have been set for maximum power on the dynamometer and should not be changed. Cool air should be routed to the carburetor by whatever means the rules permit.
- Fitted to the intake manifold are two four-barrel carburetors with high capacity non-silenced air cleaners.
The Dodge salesman’s facts manual states the following about the 1962 The two four-barrel Carter pots are big enough to provide all the fuel needed at any speed or acceleration.Max Wedge carburetors:
- Since the carburetors have been factory-set for maximum-power fuel-air ratio, no experimenting with them is necessary.
- Since carburetors and axle ratios are designed for maximum power rather than for outstanding economy, good gas mileage cannot be reasonably expected.
The 1962 Dodge 413 Ramcharger : 410 HP FEATURE MANUAL state the following about the carburetors:
- The two four-barrel Carter pots are big enough to provide all the fuel needed at any speed or acceleration.
Plymouth service bulletin No. 62-78, dated July 25, 1962, 413 Cubic Inch Super Stock Engine (Maximum Performance) stated the following:
- The two AFB (4-barrel) carburetors with hand operated choke, are similar to those used on the 1960 and 1961 Chrysler 300-F and 300-G.
Read more Mopar engine carburetor articles:
- 440 Six Carb Numbers and Holley Date Codes
- The Carburetors on a 426 Hemi
- Mopar 440 Carburetor Identification
If you have any questions about the 413 Max Wedge carburetor, send us an email found specifically on our contact page.
About 38 years ago I assembled my first Mopar engine. It’s at that time my hands on experience with Mopar engines, including the Max Wedge, started. Although my research of the engines started years earlier.
More Max Wedge Engine Articles
413 Max Wedge Horsepower and Torque
Article Resources
- Plymouth Super Stock 413 Owner’s Manual
- Dodge Salesmen’s 413 Fact Booklet
- Plymouth Service Bulletin No. 62-78: 413 Cubic Inch Super Stock Engine (Maximum Performance)
