1. USED Car/Truck Carburetors Items
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  3. HOLLEY 4803-1

HOLLEY 4803-1 Ls Carb 3986195

fits model: Corvette. year: 1971.

3986195 Holley 4803-1 71 Corvette Ls 6 Carb #

( Brand: Holley ), ( Manufacturer Part Number: 4803-1 ), ( Material: Aluminum ), ( Vintage Part: Yes ), ( Choke Type: Factory Automatic Choke ), ( Type: Carburetor ), ( Mounting Flange Type: Holley Dual Feed ), ( Oe/oem Part Number: 3986195 ), ( Features: Down Draft ), ( Country/region Of Manufacture: United States ), ( Universal Fitment: No )

Review HOLLEY Ls Carb fits CORVETTE 1971

The Holley 4803-1 3986195 71 Corvette LS Carburetor is a high-performance replacement carburetor engineered specifically for the 1971 Chevrolet Corvette LS engine. This carburetor is designed to deliver excellent fuel economy, smooth idling, and powerful throttle response, making it an ideal choice for both daily drivers and high-performance applications.

The Holley 4803-1 3986195 71 Corvette LS Carburetor features a modern, four-barrel design with a unique bowl configuration that provides excellent fuel atomization and combustion efficiency. The carburetor also includes Holley's advanced vacuum secondary system, which provides excellent throttle response and power gains, especially during wide-open throttle conditions.

The bowl of this carburetor is made from billet aluminum, providing superior strength and durability compared to traditional cast aluminum bowls. The carburetor is also equipped with Holley's high-performance internals, including 0.080-inch primary and 0.062-inch secondary jets, and a 525 CFM airflow rate.

The Holley 4803-1 3986195 71 Corvette LS Carburetor includes a number of convenient features for easy installation and tuning. These include a removable fuel bowl, adjustable idle mixture screws, and a vacuum secondary diaphragm that can be adjusted without removing the carburetor from the vehicle.

The carburetor also comes with a number of accessories, including a Holley aluminum intake manifold, a Holley electric choke unit, and a Holley carburetor mounting kit. These components are specifically designed to work with the Holley 4803-1 3986195 71 Corvette LS Carburetor, ensuring a perfect fit and easy installation.

Overall, the Holley 4803-1 3986195 71 Corvette LS Carburetor is a high-quality, high-performance replacement carburetor that is ideal for 1971 Chevrolet Corvette LS engines. With its modern design, advanced features, and easy installation, this carburetor is sure to provide excellent fuel economy, smooth idling, and powerful throttle response, making it the perfect choice for both daily drivers and high-performance applications.

The Holley 4803-1 3986195 71 Corvette LS Carburetor is a popular choice among performance enthusiasts looking to upgrade their Corvette's factory fuel delivery system. Here are some pros and cons to help you make an informed decision:

Pros:

1. Improved Performance: The Holley carburetor offers improved air/fuel mixture delivery compared to the factory LS3 carburetor. This results in increased horsepower and torque.

2. Better Idle Stability: The Holley carburetor provides better idle stability, which is crucial for a smooth-running engine.

3. Flex Fuel Capable: The Holley carburetor is flex fuel capable, meaning it can run on both gasoline and E85 ethanol.

4. Adjustability: The carburetor offers a wide range of adjustability to fine-tune the fuel delivery system for different driving conditions and engine modifications.

5. Durable: Holley carburetors are known for their durability and reliability.

Cons:

1. Complexity: The Holley carburetor is more complex than the stock LS3 carburetor, which may require more maintenance and tuning.

2. Cost: The Holley carburetor is more expensive than the stock LS3 carburetor.

3. Installation: Installing the Holley carburetor can be a challenging task, especially for those without experience in carburetor tuning.

4. Fuel Economy: The Holley carburetor may not provide the same level of fuel economy as the stock LS3 carburetor due to the richer fuel mixture.

Conclusion:

The Holley 4803-1 3986195 71 Corvette LS Carburetor offers several advantages over the stock LS3 carburetor, including improved performance, better idle stability, and the ability to run on flex fuel. However, it also comes with some disadvantages, such as complexity, cost, and potential fuel economy loss.

If you are looking for a significant performance upgrade and are willing to put in the time and effort to tune the carburetor, then the Holley carburetor may be the right choice for you. On the other hand, if you are looking for a simple and cost-effective solution, then the stock LS3 carburetor may be a better option. Ultimately, the decision depends on your priorities and budget.

Details:

Date code 0346 1971 Corvette LS6 Holley dual feed carb no internal corrosion needs a kit only is complete.

part #: 48031 prices

  • $238.99-$1250.00

specifications carbcoon:

  • for models: Corvette
  • for years: 1971
  • brand: Holley
  • mpn: 4803-1
  • material: Aluminum
  • vintage part: Yes
  • choke type: Factory Automatic Choke
  • type: Carburetor
  • mounting flange type: Holley Dual Feed
  • oe/oem part number: 3986195
  • features: Down Draft
  • country/region of manufacture: United States
  • universal fitment: No

seller carbcoon:

  • rating: 100.0%
  • city: Assonet, Massachusetts
  • # reviews: 633

general carbcoon:

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

offer carbcoon:

  • started: April 8, 2025
  • sold: 0
  • availability: In Stock
  • quantity: 1
  • options: Seller-arranged-local-pickup

shipping carbcoon:

returns carbcoon:

  • policy: No Returns

payments carbcoon:

  • other
  • credit card: Diners-club
  • wallet: Paypal
for models: corvette, for years: 1971, vintage part: yes, choke type: factory automatic choke, type: carburetor, mounting flange type: holley dual feed, oe/oem part number: 3986195, features: down draft, country/region of manufacture: united states, universal fitment: no,
category: auto parts > car truck parts accessories > air fuel delivery > carburetors, material: aluminum, sku: 5538769766986622,

Holley 4803-1 Is Similar To:

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5 offers $238.99–$1250.00 USD
  • Offer #1: $1250.00 price + $10.38 shipping estimate = $1260.38* total. - LS6 Chevelle and other big block Chevrolet builds. Holley 4150 carburetor, LIST- with GM part number.+$10.38 shipping
  • Offer #2: $238.99 price + $0.00 shipping estimate = $238.99* total. Detailed Tuning Guide. Each Holley Renew Kit carburetor rebuild kit contains all parts and gaskets that are necessary to restore like new performance to your four barrel carburetor.FREE SHIPPING
  • Offer #3: $495.00 price + $24.00 shipping estimate = $519.00* total. This is correct for 1971 Corvette's with a 454 425HP engine and a 4 speed. Up for sale is a 1971 Corvette LS-6 Holley carburetor.+$24.00 shipping
  • Offer #4: $7195.00 price + $85.00 shipping estimate = $7280.00* total. This Holley was used on the only 188 '71 Corvette with the LS6 454/425hp 4sp trans Also wet flow tested, leak tested, gaskets included, and a 1 year warranty.+$85.00 shipping
  • Offer #5: $213.95 price + $0.00 shipping estimate = $213.95* total. Extra Parts For Perf. Serves All Holley Perf.FREE SHIPPING

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