HITACHI HMB46W Top Flat Carburetors Draft

( Brand: Hitachi ), ( Manufacturer Part Number: HMB46W ), ( Type: Carburetor ), ( Features: Side Draft )

Review HITACHI Flat Top Carburetors Side Draft Datsun fits 240Z 260Z

The Hitachi HMB46W Flat Top Carburetor is a high-performance upgrade for your Datsun 240Z or 260Z. This carburetor is known for its flat-top design, which provides excellent air/fuel mixture distribution and promotes a more efficient combustion process.

The HMB46W is a 4-barrel carburetor, meaning it has four separate barrels, each supplying fuel to one cylinder in the engine. This design allows for more precise fuel delivery and better engine response compared to a single-barrel carburetor.

The carburetor features a vacuum secondary system, which provides additional fuel during vacuum conditions, such as deceleration or idle. This system helps to maintain proper fuel/air mixture and ensures consistent engine performance.

The HMB46W also comes with a built-in fuel pressure regulator, which maintains a consistent fuel pressure in the system. This is important as fuel pressure affects the optimal fuel/air mixture and the efficiency of the engine.

The carburetor body is made of aluminum and is finished in a high-gloss black coating. The metal parts, such as the floats and needles, are made of stainless steel, which ensures durability and resistance to corrosion.

The HMB46W comes with a set of 4-inch SU-style air cleaners, which are easy to install and provide ample air filtration. The carburetor also includes new gaskets, fuel lines, and mounting hardware for a hassle-free installation.

In summary, the Hitachi HMB46W Flat Top Carburetor is a high-performance upgrade for your Datsun 240Z or 260Z. Its flat-top design promotes efficient combustion, its vacuum secondary system ensures consistent fuel delivery, and its durable construction ensures long-lasting performance. With easy installation and high-quality components, this carburetor is an excellent choice for anyone looking to enhance the performance of their classic Datsun.

The Hitachi HMB46W flat top carburetor is a popular choice for Datsun 240Z and 260Z owners due to its reputation for providing excellent performance and reliability. However, like any automotive component, it comes with its pros and cons.

1. High Performance: The Hitachi HMB46W carburetor offers excellent performance, especially in high-performance applications. It provides a smooth and consistent fuel-air mixture, which results in better throttle response and increased power.

2. Easy to Install: The Hitachi HMB46W carburetor is relatively easy to install, making it a popular choice for DIY enthusiasts. It is also compatible with various intake manifolds, making it a versatile option.

3. Durable: The Hitachi HMB46W carburetor is known for its durability. It is made of high-quality materials and is designed to withstand the rigors of high-performance driving.

4. Fuel Efficient: The Hitachi HMB46W carburetor is fuel-efficient, making it a cost-effective option in the long run. It provides an optimal fuel-air mixture, which results in better combustion and fewer fuel consumption.

1. Expensive: The Hitachi HMB46W carburetor is more expensive than some other aftermarket carburetors. Its high-performance capabilities and durability come at a premium price.

2. Complex Installation: While the Hitachi HMB46W carburetor is relatively easy to install, the process can be complex for those who are not familiar with carburetor installation. It requires precise adjustments and calibration, which can be time-consuming and challenging.

3. Requires Regular Maintenance: The Hitachi HMB46W carburetor requires regular maintenance to ensure optimal performance. It needs to be adjusted and calibrated periodically, which can be time-consuming and costly.

The Hitachi HMB46W flat top carburetor is an excellent choice for Datsun 240Z and 260Z owners who are looking for high performance, durability, and fuel efficiency. However, it comes with a premium price tag and requires regular maintenance. If you are a DIY enthusiast with experience in carburetor installation and maintenance, the Hitachi HMB46W carburetor is an excellent investment. If you are not comfortable with the complexities of carburetor installation and maintenance, you may want to consider other options.

If you are looking for a high-performance carburetor for your Datsun 240Z or 260Z and have experience with carburetor installation and maintenance, the Hitachi HMB46W carburetor is an excellent choice. If you are not comfortable with the complexities of carburetor installation and maintenance, you may want to consider a more user-friendly option, such as an electronic fuel injection system. Alternatively, you can also consider a less expensive aftermarket carburetor with similar performance capabilities. Ultimately, the decision comes down to your budget, experience level, and performance goals.

Details:

Ultrasonic cleaned and rebuild kits installed. Pair of Hitachi HMB46W side draft carburetors from a Datsun 240Z or 260Z. One is missing a vacuum fitting by the throttle blade and they both appear to be choke dash pot linkage.

part #: hmb46w prices

• $44.99-$180.00

specifications carbcoon:

• for models: 240z, 260z
• for makes: Datsun
• brand: Hitachi
• mpn: Hmb46w
• type: Carburetor
• features: Side Draft

shipping carbcoon:

• carrier: UPS
• type: Calculated
• transit: 3-7 Days
• service: UPS Ground
• class: Standard
• cost: $22.15

payments carbcoon:

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

general carbcoon:

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

offer carbcoon:

• sold: 0
• quantity: 1
• options: Ship-to-home
• availability: In Stock
• started: June 23, 2025

returns carbcoon:

• policy: No Returns

seller carbcoon:

• rating: 100.0%
• city: Reno, Nevada
• # reviews: 161

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