Reman Thunder AVS Carb #18049 500 CFM With Manual Choke, Satin Finish (Non-EGR)

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The Edelbrock 18049 Remanufactured Thunder Series AVS 500 CFM manual choke carburetor has been designed and calibrated to deliver optimum street performance in Dual-Quad applications. Several characteristics make the 18049 Remanufactured Thunder Series AVS 500 CFM manual choke carburetor an outstanding street performer. The first one is that metering rods are utilized to transition between circuits. The carburetor is unaffected by engine backfires, which means that there are no power valves to blow out, and the rods can be changed in seconds without carburetor removal or fuel draining. Secondly, the carburetor has the unique ability to "hold a tune", so once it is tuned, the carburetor stay’s tuned. What this means to you is that compared to other carburetors, the performance remains consistent and the calibration stays unchanged. The third characteristic is the primary and secondary booster clusters that are utilized offer the most accurate and up-to-date calibration available for today's fuels and octane levels. Fourth the unique Thunder Series' Qwik-Tune Secondary Air Valve allows for limitless calibration of the secondary circuit with simple hand tools while on your vehicle. It's quick. It's simple. It's effective. It can be easily adjusted - in seconds - to suit your application... no extra parts required to achieve optimum performance. Simply put the Edelbrock 18049 Remanufactured Thunder Series AVS 500 CFM manual choke carburetor is undeniably the most innovative and dependable street performance carburetor available today.


Availability Available
Application Universal
UPC 00085347180493
Metering Rod Power Tip Diameter 0.052 in
Metering Rod Power Tip Diameter 0.052 in
Mounting Hole Quantity 8
Gasket Or Seal Included Yes
Mounting Hole Diameter 0.355 in
Mounting Hardware Included No
Barrel Quantity 4
Flange Type Square Bore
Float Drop 1.0 in
Street Legal No
Adjustable Float Level No
Secondary Jet Diameter 0.077 in
Small Venturi Diameter 1.560 in
Inlet Fitting Thread Diameter 0.625 in
Body Material Aluminum
Base Length 6.25 in
Air Cleaner Flange Diameter 5.125 in
Main Venturi Diameter 1.190 in
Body Height 3.25 in
Linkage Attached No
Spacer Included No
Center Hung Floats No
Float Level 0.437 in
Base Width 5.937 in
Float Material Brass
Metering Rod Length 3.15 in
Availability Note Available to Order
Warranty 1 Months
Emissions Code
Hazardous Materials Warning WARNING: This product can expose you to Zinc, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit
Installation Notes
  • Manual choke AVS® Carbs cannot be converted to electric choke
  • Carbs #1803, #1804 and #18034, #18044 are calibrated for dual-quad applications only and need to be purchased together, one manual and one electric choke
  • Thunder Series AVS Carbs will work with Ford automatic overdrive trans (AOD) when used with Lokar bracket SRK-4000
Choke Type Manual
Finish Satin
Marine Approved No
CFM Rating 500 cfm
Primary Jet Diameter 0.086 in