SU AUC578 Td Mkii Carburetor

( Brand: Su ), ( Manufacturer Part Number: AUC578 ), ( Choke Type: Mechanical ), ( Type: Carburetor ), ( Items Included: Gasket ), ( Material: Alloy, Aluminum, Brass ), ( Vintage Part: Yes ), ( Country Of Origin: United Kingdom )

Review SU Mg Mkii Carburetor Pair Fully Restored And Original fits H4

The SU AUC578 TD MkII H4 Carburetor is a classic and highly regarded fuel delivery system for vintage and performance automobiles. This carburetor is part of the TD series, which was an improvement over the earlier SU HS series, featuring a more efficient design and improved idle quality.

The H4 designation signifies this carburetor's four-barrel configuration, which allows for a greater air flow rate and more efficient fuel mixture preparation. This results in improved engine performance, particularly in high-rpm applications and under heavy load conditions.

The SU AUC578 TD MkII H4 Carburetor is equipped with a number of features that make it ideal for use in classic cars and performance applications. These include:

* Four 2-inch diameter, downdraught SU HIF4SU choke carburetor bodies, which provide excellent throttle response and fuel economy

* Four-venturi design, which ensures a smooth and even fuel mixture distribution to each cylinder

* Adjustable main jets and needle jet for fine-tuning the fuel mixture to specific engine conditions

* Synchronized choke mechanism, which ensures that all four barrels are brought up to operating temperature evenly and efficiently

* Integrated air bleeds and fuel pressure regulator, which make installation and tuning easier

* Durable construction, with a polished finish and brass components, which not only looks great but also provides excellent corrosion resistance

This carburetor is suitable for use in a wide range of applications, from classic cars and hot rods to high-performance engines. Its versatility, combined with its classic design and excellent performance characteristics, make it a popular choice among enthusiasts and builders alike.

In summary, the SU AUC578 TD MkII H4 Carburetor is a high-performance, four-barrel carburetor that is ideal for use in vintage and performance automobiles. Its efficient design, adjustable fuel mixture settings, and durable construction make it a reliable and effective fuel delivery system that is sure to enhance the performance and driving experience of any vehicle.

Pros and Cons of Buying a SU AUC578 TD MkII H4 Carburetor

The SU AUC578 TD MkII H4 carburetor is a popular choice for classic car enthusiasts and vintage vehicle owners. This carburetor is known for its durability, reliability, and performance. However, like any other automotive component, it comes with its advantages and disadvantages. In this analysis, we will discuss both the pros and cons of buying a SU AUC578 TD MkII H4 carburetor.

1. Authenticity and Vintage Appeal: The SU AUC578 TD MkII H4 carburetor maintains the original look and feel of classic cars. For those who value the authenticity of their vintage vehicles, this carburetor is an excellent choice.

2. Durability: Known for their robust design, SU carburetors have a reputation for lasting a long time. The SU AUC578 TD MkII H4 is no exception, making it a wise investment for those looking for a reliable component.

3. Adjustability: The SU AUC578 TD MkII H4 offers a high degree of adjustability, allowing users to fine-tune the engine's performance based on their preferences and driving conditions.

4. Wide Application: This carburetor is compatible with a broad range of engines, making it a versatile choice for various classic car models.

1. Complexity: Compared to modern fuel injection systems, carburetors can be more complex to set up and maintain. The SU AUC578 TD MkII H4 is no exception, requiring a certain level of technical knowledge and experience.

2. Fuel Efficiency: Carburetors generally consume more fuel than modern fuel injection systems, leading to increased fuel consumption and higher operating costs.

3. Emission Standards: Meeting modern emission standards can be challenging with a carburetor like the SU AUC578 TD MkII H4. This may limit its use in certain applications, such as daily drivers or vehicles subject to stringent emissions regulations.

The SU AUC578 TD MkII H4 carburetor offers a unique blend of authenticity, durability, adjustability, and versatility. However, it also comes with its challenges, including complexity, fuel efficiency, and compatibility with modern emission standards. Ultimately, the decision to buy a SU AUC578 TD MkII H4 carburetor depends on the user's priorities, preferences, and the specific requirements of their classic car.

For those who value the authenticity and vintage appeal of their classic car and are willing to invest the time and effort required to maintain it, the SU AUC578 TD MkII H4 carburetor is an excellent choice. However, for those who prioritize fuel efficiency, ease of use, or modern emission standards, alternative fuel injection systems may be a better option.

Details:

Completeness Full master rebuild by an experienced SU Carburetor expert, using parts exclusively procured from Burden in the UK. Fully Restored: Re-bushed bodies, new throttle shafts discs, LS1 needles, all steel bits replanted, and everything else that would be Supplied in a Master Rebuild kit.

part #: auc578 price

• $1195.00

specifications carbcoon:

• for models: H4
• brand: Su
• mpn: Auc578
• choke type: Mechanical
• type: Carburetor
• items included: Gasket
• material: Alloy, Aluminum, Brass
• vintage part: Yes
• country of origin: United Kingdom

seller carbcoon:

• city: Aledo, Texas
• # reviews: 951
• rating: 100.0%

payments carbcoon:

• wallet: Google-pay
• credit card: Diners-club
• other

offer carbcoon:

• quantity: 1
• started: March 17, 2026
• sold: 0
• availability: In Stock
• options: Ship-to-home

shipping carbcoon:

• transit: 7-13 Days
• carrier: UPS
• type: Fixed
• service: UPS Ground Saver
• class: Economy
• cost: $40.00

general carbcoon:

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

returns carbcoon:

• policy: Returns Accepted
• time: 30 Days
• paid by: Buyer

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