DUAL D31SB Dupoint Point Distributor 36

( Brand: Dual ), ( Manufacturer Part Number: D31SB ), ( Type: Distributor ), ( Vintage Part: Yes )

Review DUAL Wdupoint 36 Point Distributor Bbc Sbc Vintage

Introducing the Dual D31SB Dupoint 36-Point Distributor by BBC, a high-performance electrical component designed to deliver accurate and reliable ignition system operation in automotive applications. This distributor is specifically engineered for vehicles requiring dual ignition coils and features 36 distributor points to properly time the ignition pulses for each cylinder.

The D31SB distributor housing is robustly built with high-quality materials, ensuring durability and longevity even under demanding conditions. The cap and rotor assembly are precision-machined to ensure a perfect fit and reliable electrical contact. The 36 copper alloy distributor points are carefully plated with nickel for enhanced conductivity and resistance to corrosion.

The distributor is designed to work seamlessly with dual ignition coils, allowing for efficient and effective spark generation in each cylinder. The distributor cap includes a conveniently located center ground strap to ensure proper grounding and minimize voltage drops.

The D31SB distributor also features a vacuum advance mechanism, which allows the timing advance to be adjusted according to engine vacuum. This feature helps to optimize fuel economy and engine performance by advancing the ignition timing under light throttle conditions.

Installation of the Dual D31SB Dupoint 36-Point Distributor is a straightforward process, and it comes with all necessary hardware for a trouble-free installation. The distributor is also compatible with various ignition system accessories, such as points adjusters and ignition timing advance kits, to further customize and optimize its performance.

In summary, the Dual D31SB Dupoint 36-Point Distributor by BBC is a top-quality electrical component that provides accurate and reliable ignition system operation for vehicles requiring dual ignition coils. Its robust design, precision machining, and convenient features make it an ideal choice for automotive enthusiasts and professionals seeking superior performance and longevity.

Buying a Dual D31SB Dupoint 36-point distributor for a BBC (Big Block Chevrolet) engine can be a consideration for those looking to restore or upgrade their vehicle's ignition system. Here are some potential pros and cons to help you make an informed decision:

1. Improved Ignition Efficiency: A 36-point distributor provides more precise ignition timing compared to a standard 12-point distributor. This can lead to improved combustion efficiency, better fuel economy, and increased power.

2. Durability: A dual distributor setup can provide better reliability and durability since it uses two distributors to distribute the spark to each cylinder. This can be beneficial for high-performance applications or in vehicles that are driven extensively.

3. Adjustability: A dual distributor setup can provide the ability to adjust ignition timing independently for each cylinder bank. This can be useful for fine-tuning the engine's performance or for use with different types of fuel or engine modifications.

1. Cost: A dual D31SB distributor setup can be more expensive than a standard 12-point distributor. The cost of the distributor itself, as well as any necessary modifications to the engine and wiring harness, can add up.

2. Complexity: Installing and configuring a dual distributor setup can be more complex than a standard distributor. It may require additional time and expertise to ensure that the system is properly configured and functioning correctly.

3. Maintenance: A dual distributor setup may require more frequent maintenance than a standard distributor. This can include regular checks of the distributor caps, rotors, and points, as well as regular cleaning and adjustment of the ignition system.

A Dual D31SB Dupoint 36-point distributor can offer improved ignition efficiency, durability, and adjustability for a BBC engine. However, it also comes with a higher cost, increased complexity, and additional maintenance requirements. Ultimately, the decision to purchase a dual distributor setup depends on your specific needs, budget, and technical expertise. If you are looking for maximum performance and are willing to invest the time and resources, a dual distributor setup may be the way to go. Otherwise, a standard distributor may be a more cost-effective and practical solution.

Details:

Predecessor to Mallory. Nice solid vintage Dual point distributor for small block Chevy and big. No other parts included but what is in the pic.

part #: d31sb prices

• $165.00-$252.99

specifications disripa:

• brand: Dual
• mpn: D31sb
• type: Distributor
• vintage part: Yes

shipping disripa:

• type: Calculated
• cost: $21.15
• service: USPS Ground Advantage
• class: Standard
• carrier: USPS
• transit: 5-12 Days

returns disripa:

• policy: No Returns

offer disripa:

• quantity: 1
• availability: In Stock
• sold: 0
• started: January 24, 2026
• options: Ship-to-home

seller disripa:

• city: Mishawaka, Indiana
• rating: 100.0%
• # reviews: 689

general disripa:

• condition: Used
• Car Truck Parts Accessories > Ignition Systems Components > Distributors

payments disripa:

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

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