HOLLEY Carburetor Cfm Gm 3878261-EM. 4160 780 3878261-EH 3310

( Brand: Holley ), ( Manufacturer Part Number: 3878261-EM ), ( Items Included: Float Bowl Screws, Gasket ), ( Material: Aluminum ), ( Vintage Part: Yes ), ( Choke Type: Heat ), ( Type: Carburetor ), ( Mounting Flange Type: Square Bore ), ( Features: Down Draft ), ( Country/region Of Manufacture: United States )

Review HOLLEY 3878261-em. 4160 Carburetor 780 Cfm List Chevy Gm fits CHEVELLE

The Holley 3878261-EM 4160 carburetor is a high-performance, fuel-injected carburetor designed for applications requiring large CFM rates. This specific model is ideal for Chevrolet Chevelle and GM vehicles, and it offers a flow rate of 780 CFM.

The Holley 4160 series carburetor is known for its robust design and precision engineering. It features a large, cast aluminum base with a polished finish, providing excellent heat dissipation and a sleek appearance. The carburetor comes with a set of Holley's famous Ultra Lite hollow core Suction Bowl Intake Manifolds (part number 3310), which reduces weight and improves airflow.

The 4160 carburetor utilizes Holley's advanced electric choke system (part number 3878261-EH), providing fast and reliable choke engagement. This system includes a 3-position vacuum switch (on, off, or manual) and an adjustable choke plate to accommodate various engine temperatures. The electric choke system offers a significant improvement over traditional manual choke systems, making cold starts easier and more consistent.

Under the hood, the 4160 carburetor boasts several performance-enhancing features. It includes Holley's advanced vacuum secondary system, which utilizes a progressive vacuum secondary diaphragm to provide a smooth, consistent power band. The carburetor also features a fine-tunable accelerator pump, allowing for precise fuel delivery during acceleration.

The Holley 3878261-EM 4160 carburetor comes fully assembled and calibrated, making it easy to install on your Chevelle or GM vehicle. It includes all necessary hardware for installation, along with a detailed instruction manual to guide you through the process. With its large CFM flow rate, advanced electronic features, and proven Holley performance, this carburetor is an excellent choice for high-performance applications.

The Holley 3878261-EM/3310 4160 Series carburetor is a popular choice for those looking to upgrade the fuel delivery system in their Chevrolet Chevelle or other GM vehicles. This carburetor offers a 780 CFM capacity and is designed to provide excellent performance and fuel efficiency. Here are some pros and cons to help you make an informed decision about purchasing this carburetor:

1. High CFM rating: With a 780 CFM capacity, this carburetor is capable of delivering a large amount of air and fuel to the engine, making it an excellent choice for high-performance applications.

2. Easy-to-use design: The Holley 4160 Series carburetor is known for its simple and easy-to-use design. It features a vacuum secondary system, which makes it easy to tune and adjust for optimal performance.

3. High-quality construction: This carburetor is built to last. It features a heavy-duty aluminum base and a cast aluminum body, making it durable and resistant to corrosion.

4. Improved fuel economy: By delivering the correct amount of fuel to the engine, this carburetor can help improve fuel economy and reduce emissions.

5. Wide compatibility: This carburetor is compatible with a wide range of GM vehicles, including the Chevrolet Chevelle.

1. Complex installation: Installing a carburetor like the Holley 4160 Series can be a complex and time-consuming process. It requires a good understanding of fuel system plumbing and tuning.

2. Expensive: Compared to other carburetors on the market, the Holley 4160 Series can be quite expensive.

3. Requires regular maintenance: Like all carburetors, the Holley 4160 Series requires regular maintenance to ensure optimal performance. This includes regular tune-ups and fuel system cleaning.

The Holley 4160 Series 780 CFM carburetor is an excellent choice for those looking to upgrade the fuel delivery system in their Chevrolet Chevelle or other GM vehicles. Its high CFM rating, easy-to-use design, and high-quality construction make it a popular choice among performance enthusiasts. However, its complex installation process, expensive price tag, and requirement for regular maintenance are important considerations to keep in mind.

If you're looking for a high-performance carburetor for your Chevrolet Chevelle or other GM vehicle, the Holley 4160 Series 780 CFM carburetor is definitely worth considering. However, be prepared for the complex installation process and the ongoing maintenance requirements. If you're not comfortable with these aspects, you may want to consider a simpler or less expensive option. Ultimately, the decision comes down to your budget, experience level, and performance goals.

Details:

There is minor pitting on a couple of the throttle butterflies,but nothing excessive spics. I will get back to you as soon can. The rebuild includes Holley rebuild kit 37-119. Any standard paper gaskets were sprayed with silicone to minimizing sticking.

The carburetor was dismantled, inspected, chemically and media blasted cleaned, passageways chased, mating surfaces checked for squareness,and rebuilt to manufactures specifications unless specified .Throttle shafts are radial play brass bushing installed if necessary throttle plates correct range of motion. The pictures are of the actual carburetor for sale. Hiss replacement carb for a GM/ Chevy 1965-70Chevelle with 396 425 HP motor, but can be used other motors using the square bore manifolds OEM or aftermarket. The rebuild kit comes with non-stick blue and standard gaskets.

Will combine shipping where applicable to save you and me time and money. N empower valve 10.5 primary, 6.5 secondary ,new axle era tor pump diaphragm, new fuel bowl needles assemblies 0.097 , new vacuum secondary diaphragm, Metering outsizes include - 72 primaries and 76 secondaries and the primary discharge nozzle is 0.025. Completely rebuilt Holley4160 Series 3878261-EH,LIST-3310 4Barrel Carburetor, 196 9 date code 995. This is a fresh rebuild withdraw pre-start adjustments made final can be anther car while running.

There are no cracks, striped threads, painting of parts. The carburetor stand is not included with the sale.

part #: 3878261 prices

• $169.99-$1000.49

specifications carbcoon:

• for models: Chevelle
• for makes: Chevy
• brand: Holley
• mpn: 3878261-em
• items included: Float Bowl Screws, Gasket
• material: Aluminum
• vintage part: Yes
• choke type: Heat
• type: Carburetor
• mounting flange type: Square Bore
• features: Down Draft
• country/region of manufacture: United States

offer carbcoon:

• sold: 0
• quantity: 1
• started: August 28, 2025
• options: Ship-to-home
• availability: In Stock

payments carbcoon:

• other
• wallet: Google-pay
• credit card: Discover

shipping carbcoon:

• type: Fixed
• service: USPS Priority Mail
• carrier: USPS
• transit: 6-12 Days
• class: Expedited
• cost: $20.00

returns carbcoon:

• policy: No Returns

general carbcoon:

• condition: Remanufactured
• Car Truck Parts Accessories > Air Fuel Delivery > Carburetors

seller carbcoon:

• # reviews: 682
• city: Chico, California
• rating: 100.0%

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