1ST-RACING 1031-1BKZXLUS Billet Carburetor Spacer Square Portpart Holley 4500

( Brand: 1st-racing ), ( Type: Spacer ), ( Manufacturer Warranty: 1 Year ), ( Manufacturer Part Number: 1031-1BKZXLUS ), ( Material: Aluminum ), ( Universal Fitment: Yes ), ( Country Of Origin: China )

Review 1ST-RACING Inch Billet Carburetor Spacer Square Bore Portpart Holley 4500 Type Black

The 1st Racing 1031-1BKZXLUS Billet Carburetor Spacer is an essential performance upgrade for Holley 4500 series carburetors. This billet aluminum spacer is meticulously CNC machined to provide a perfect fit and exceptional durability. The square port design of this spacer is specifically engineered to complement Holley's square port carburetors, ensuring optimal flow and fuel distribution.

Measuring 1.75 inches in length, 1.75 inches in width, and 0.375 inches in height, this spacer is precision crafted to provide a flat, stable base for your carburetor. Its billet aluminum construction not only looks great but also ensures superior strength and rigidity, making it an excellent choice for high-performance applications.

The 1031-1BKZXLUS Billet Carburetor Spacer is anodized in a tough, corrosion-resistant finish that protects against the elements and adds an attractive, glossy look. This spacer is also designed to work seamlessly with other Holley performance parts and accessories, making it a versatile addition to any performance build.

Installing the 1st Racing 1031-1BKZXLUS Billet Carburetor Spacer is a straightforward process. Simply remove your existing carburetor base plate and replace it with this spacer. The included hardware makes installation easy and secure, allowing you to focus on other aspects of your project.

By upgrading to the 1st Racing 1031-1BKZXLUS Billet Carburetor Spacer, you'll experience improved engine performance, increased throttle response, and better fuel management. This spacer is an investment in the longevity and efficiency of your Holley 4500 series carburetor, making it an essential addition for any serious performance enthusiast.

Pros and Cons of Buying a Holley 1031-1BKZXLUS Billet Carburetor Spacer for Square Port Applications

The Holley 1031-1BKZXLUS Billet Carburetor Spacer is a performance part designed for use with Holley square port carburetors. This spacer is used to provide clearance for larger intake manifolds or other components that may interfere with the carburetor's installation. In this analysis, we will discuss the potential advantages and disadvantages of purchasing this part.

1. Enhanced Clearance: The primary benefit of this billet carburetor spacer is the increased clearance it provides for larger intake manifolds or other components, facilitating easier installation and better engine performance.

2. Durability: Made from high-quality billet aluminum, the spacer offers superior strength and durability compared to other spacer materials, ensuring it can withstand the rigors of high-performance applications.

3. Customizable: This spacer is available in various sizes to accommodate different intake manifold configurations, making it a versatile option for a wide range of applications.

4. Improved Airflow: The use of a billet spacer can potentially improve airflow by providing a smoother and more consistent path for fuel and air mixtures to reach the engine.

1. Cost: The billet carburetor spacer is typically more expensive than other spacer options made from less expensive materials, such as cast aluminum or steel.

2. Installation Complexity: Installing a billet carburetor spacer may require additional time and effort compared to other spacer types due to its custom nature and the need for precise measurements and alignment.

3. Weight: The billet spacer is denser than other spacer materials, which may add a slight weight increase to the intake manifold and potentially affect the overall performance of the engine, depending on the specific application.

The Holley 1031-1BKZXLUS Billet Carburetor Spacer offers several advantages, including enhanced clearance, improved durability, customizability, and potential airflow improvements. However, it comes with some disadvantages, such as increased cost, installation complexity, and potential weight gain.

If you are working on a high-performance application where clearance is a concern, and you're willing to invest in a high-quality, durable component, the Holley 1031-1BKZXLUS Billet Carburetor Spacer is a strong recommendation. For budget-conscious applications or those with less stringent clearance requirements, alternative spacer options made from less expensive materials may be more suitable.

part # 10311bkzxlus price

• $307.25

specifications carbcaddie:

• brand: 1st-racing
• type: Spacer
• manufacturer warranty: 1 Year
• manufacturer part number: 1031-1BKZXLUS
• material: Aluminum
• universal fitment: Yes
• country of origin: China

offer carbcaddie:

• started: March 2, 2026
• quantity: 50
• options: Ship-to-home
• sold: 0
• availability: In Stock
• best offers: True

shipping carbcaddie:

• transit: 4-9 Days
• cost: $0.00
• class: Standard
• type: Fixed
• service: UPS Ground
• carrier: UPS

seller carbcaddie:

• rating: 95.0%
• # reviews: 6093

general carbcaddie:

• Car Truck Parts Accessories > Air Fuel Delivery > Carburetor Parts
• condition: New

returns carbcaddie:

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

payments carbcaddie:

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

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