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- Aluminum Truck Avenger 4-bbl Carb
- 770 CFM
- Manual Choke
Holley's Truck Avenger series carburetors have just been taken to the next level. Truck Avenger carburetors are known to go off-roading right out of the box, so what could be better than a Holley Truck Avenger carburetor? How about one in aluminum? They save weight and look great. The Aluminum Truck avenger features a chromate finish to protect against the grueling environments encountered by an off-road vehicle.
The Aluminum Truck Avenger is designed specifically for off-road applications. The unique fuel metering block eliminates fuel spillover through the boosters at extreme angles allowing for 40-degree climbing, 30-degree side hill maneuvers and nose-down descents to avoid hesitations, stalling and flooding typically associated with carbs in an off-road environment.
The Aluminum Truck Avenger carburetors have the same great features as their zinc counterparts such as a quick change vacuum secondary for easy fine tuning; four vacuum ports for all necessary vacuum accessories; manual choke for precise cold start control; and a built-in fuel filter.
The 770 CFM Aluminum Truck Avenger is the perfect carburetor for big block engines.
Features: - Aluminum Construction for added weight savings
- Gold Dichromate finish for extreme off road environments
- Single feed fuel inlet for ease of installation
- Optimized off-road calibration that works out-of-the-box
- Manual choke (Cable driven, hand operated) for precise cold start control
- Vacuum secondaries allow use on a wide variety of vehicles. Quick Change vacuum housing cap allows you to tune for performance or fuel economy (springs included)
- Ford A/T kick down
- One piece off-road vent tube eliminates fuel spillover during extreme maneuvers
- Intended for off-road/off-angle use. Unique metering block designed for flood free operation up to 40° while climbing and 30° during side hill maneuvers & 'nose down' descents
- 100% wet-flow tested by Holley technicians to assure it arrives ready to run!Specs:
- Model: 4150
- CFM: 770
- Barrels: 4
- Booster: Annular / Straight
- Throttle Bore: 1.688 inch
- Secondaries: Vacuum
- Vacuum Ports: 1 timed (spark) port, 2 full, and 1 PCV port
- Choke: Manual
- Finish: Gold Dichromate
- Fuel: Gasoline
- Fuel Inlet: Single
- Material: Aluminum
- Supercharged Application: No
- Emission Code: 3
Designed with the off-road truck enthusiast in mind!
The Holley Truck Avenger carburetor's unique metering block prevents fuel spilling through the boosters at extreme angles, allowing for 40º climbs, 30º side-hill maneuvers, and nose-down descents. This design also helps avoid hesitation, stalling, and the flooding typically associated with carburetors in off-road applications. In addition, high vacuum signal annular boosters offer incredible low to mid-range throttle response. Not intended for use on towing applications. Truck Avengers are also available in an Aluminum Body Version! Same great carburetor and performance, just lighter!
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Holley Truck Avenger Carburetor Applications:
- 470cfm: 4 cylinder to small displacement V8 engines up to 334ci
- 670cfm: small block engines (350-400ci)
- 770cfm: small and big block engines (400ci +)
Features: - Exclusive one-piece, off-road vent tube
- Adjustable vacuum secondary to tune for acceleration upgrade or fuel economy
- Single-feed fuel inlet
- Built-in fuel inlet filter and viton transfer tube seals ensure leak-free operation
- 4th generation power valve
- HVS annular boosters
- Four vacuum ports for easy accessory connection
- Adjustable spring-loaded needle and seats for stable fuel levels under all conditions
- Square fuel bowls with side-hung floats
- Clear sight plugs for easy float setting
- Dichromate finish
JEGS Easy Kits are designed by JEGS high performance racing professionals to help you get all the performance parts you need for your race car, hot rod or truck.
Take your off-road performance to the next level with Holley Truck Avenger Carburetors, specifically engineered for trucks, SUVs, and 4x4s that demand dependable fuel delivery in rugged terrain. Whether you're crawling over rocks, powering through mud, or cruising the backroads, this carburetor delivers rock-solid performance in the toughest conditions.
The Holley Truck Avenger features off-road-calibrated metering blocks, a built-in fuel bowl vent baffle, and a spring-loaded needle and seat to prevent fuel slosh and stalling during steep inclines or side-hill angles. It's perfect for trail rigs and off-road builds where traditional carburetors fall short.
Rated at 670 CFM, the popular Holley 670 Truck Avenger model is ideal for small- to mid-block V8 engines, providing a great balance of throttle response and fuel efficiency. Its vacuum secondaries and electric choke offer smooth transitions and easy cold starts—making it just as capable on the street as it is in the dirt.
Easy to tune and install, Holley's design ensures reliable power and drivability whether you're running a rock crawler, weekend wheeler, or lifted daily driver. Zinc-coated for corrosion resistance, this carb is built to endure harsh elements and long hauls.
If you need a carburetor that works as hard as your truck, the Holley Truck Avenger is the performance upgrade you can count on. Trusted by off-roaders and performance enthusiasts alike, it's the perfect mix of rugged durability and Holley precision.
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