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  3. HOLLEY 1448BP

HOLLEY 1448BP Barrel Centri Vac Carburetor International

fits model: 12r.

1448bp Holley 4 Barrel Centri Vac Carburetor 12r International

( Brand: Holley ), ( Manufacturer Part Number: 1448BP ), ( Type: Carburetor ), ( Oe/oem Part Number: List 1700 ), ( Vintage Part: Yes ), ( Country Of Origin: United States )

Review HOLLEY Barrel Centri Vac Carburetor International fits 12R

The Holley 1448BP 12-71 Super Pac Single Plane Barrel Carburetor is a high-performance fuel delivery system designed for use in various applications, including hot rods, muscle cars, and racing vehicles. This particular model, the 1448BP, is part of Holley's 12-71 series and is suitable for engines that use International 12-bolt engine blocks.

This carburetor features a centrifugal vacuum secondary system, which utilizes a vacuum-operated secondary diaphragm to provide additional fuel for high RPM performance. This design helps to ensure optimal engine power and torque across the entire RPM range.

The Holley 1448BP comes with a 1050 CFM primary and 550 CFM secondary venturi. The primary venturi is equipped with a Holley's proven design, featuring a meticulously machined bore and an accurately sized power jet. The secondary venturi is designed to provide a smooth transition from the primary to the secondary, ensuring a uniform fuel mixture throughout the engine's operating range.

The carburetor body is made from high-quality aluminum, which is both strong and lightweight. It features a polished finish that not only looks great but also helps to reduce air turbulence for improved performance. The base plate is also made from aluminum and features a bolt-on design for easy installation.

The Holley 1448BP comes with a number of additional features designed to make installation and tuning easier. These include a built-in accelerator pump, a power pulse system for improved idle quality, and a choke system for easy cold starts. The carburetor is also compatible with Holley's electronic fuel injection systems, allowing for easy conversion to EFI if desired.

The Holley 1448BP is a high-quality, high-performance carburetor that is suitable for a wide range of applications. Its centrifugal vacuum secondary system, accurate venturi sizes, and durable aluminum construction make it an excellent choice for those looking to maximize the performance of their engine. With its easy-to-install design and additional features, this carburetor is a great choice for both enthusiasts and professional racers alike.

The Holley 1448BP BL Carburetor, also known as the Centrifinal Vacuum Secondary (CVS) carburetor, is a popular choice among automotive enthusiasts who are looking to improve the performance of their 12-valve International engines. Here are some pros and cons of buying this carburetor.

Pros:

1. Improved Performance: The Holley 1448BP BL Carburetor is designed to provide better fuel delivery and air/fuel mixture compared to the stock carburetor. This results in improved engine performance, including better throttle response, increased horsepower, and improved fuel economy.

2. Fuel Efficiency: The CVS design of this carburetor helps to improve fuel efficiency by using a vacuum-operated secondaries system. This system only opens the secondary circuits when additional fuel is needed, which reduces fuel consumption when cruising at low RPMs.

3. Easy Installation: The Holley 1448BP BL Carburetor is relatively easy to install, as it uses the factory intake manifold and throttle linkage. This makes it a popular choice for those who are looking for a performance upgrade without the hassle of a complex installation process.

4. Adjustability: The Holley 1448BP BL Carburetor offers a wide range of adjustability, allowing users to fine-tune the carburetor for their specific engine and driving conditions. This includes adjustable secondary enrichment circuits, idle mixture adjustment, and primary and secondary venturi sizes.

5. Quality Construction: Holley is known for its high-quality carburetors, and the 1448BP BL is no exception. The carburetor is made from heavy-duty materials, including billet aluminum, and features durable internal components that can withstand the rigors of high-performance driving.

Cons:

1. Cost: The Holley 1448BP BL Carburetor is more expensive than a stock carburetor. This may be a deterrent for some automotive enthusiasts who are working on a budget.

2. Complexity: While the installation process is relatively straightforward, the Holley 1448BP BL Carburetor does have more complex internal components than a stock carburetor. This may require additional time and effort for maintenance and tuning.

3. Fuel Pressure Regulator: The Holley 1448BP BL Carburetor requires a fuel pressure regulator to maintain the correct fuel pressure. This additional component adds to the cost and complexity of the system.

4. Limited Compatibility: The Holley 1448BP BL Carburetor is specifically designed for use with 12-valve International engines. It may not be compatible with other engine types or models.

Conclusion:

The Holley 1448BP BL Carburetor is a high-performance carburetor that offers a number of benefits for those looking to improve the performance of their 12-valve International engine. While it does come with some additional cost and complexity, the improved performance, fuel efficiency, and adjustability make it a worthwhile investment for many automotive enthusiasts.

Recommendation:

If you are looking to improve the performance of your 12-valve International engine and are willing to invest in a high-quality, high-performance carburetor, the Holley 1448BP BL Carburetor is an excellent choice. However, if you are working on a tight budget or prefer a simpler installation process, you may want to consider other options. Ultimately, the decision to purchase the Holley 1448BP BL Carburetor should be based on your specific needs and priorities as a automotive enthusiast.

Details:

Been sitting for awhile probably will need rebuilt The 4 Barrel Centri Vac Holley Carburetor 12R 1448BP is a vintage part manufactured in the USA by.

part #: 1448bp prices

  • $75.00-$125.00

specifications carbcoon:

  • for models: 12r
  • brand: Holley
  • mpn: 1448bp
  • type: Carburetor
  • oe/oem part number: List 1700
  • vintage part: Yes
  • country of origin: United States

general carbcoon:

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

payments carbcoon:

  • other
  • wallet: Apple-pay
  • credit card: Mastercard

returns carbcoon:

  • policy: No Returns

shipping carbcoon:

  • transit: 4-10 Days
  • service: USPS Ground Advantage
  • carrier: USPS
  • class: Standard
  • cost: $13.81
  • type: Calculated

offer carbcoon:

  • options: Ship-to-home
  • best offers: True
  • sold: 0
  • availability: In Stock
  • started: May 5, 2026
  • quantity: 1

seller carbcoon:

  • rating: 99.3%
  • # reviews: 196
  • city: Lexington, Kentucky
for models: 12r, type: carburetor, oe/oem part number: list 1700, vintage part: yes, country of origin: united states,
category: auto parts > car truck parts accessories > air fuel delivery > carburetors, sku: 11129871603652813,

Holley 1448BP Is Similar To:

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2 offers $75.00–$125.00 USD
  • Offer #1: $75.00 price + $13.81 shipping estimate = $88.81* total. Been sitting for awhile probably will need rebuilt The 4 Barrel Centri Vac Holley Carburetor 12R is a vintage part manufactured in the United States by Holley.+$13.81 shipping
  • Offer #2: $125.00 price + $19.00 shipping estimate = $144.00* total. Sold as is.+$19.00 shipping

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