3855961 GENERAL MOTORS Block Bolt 396

Review GENERAL MOTORS Bbc 1965/1966 Block Bolt Main for 396

The BBC 1965/1966 3855961 396 block bolt is a crucial automotive component designed for use in British Motor Corporation vehicles produced during the mid-1960s. This specific part belongs to the 396 series, which is widely used in various models from the era, including the Mini, Austin-Healey, and Morris cars.

This bolt is a hexagonal head, high tensile fastener with a thread pitch of M10x1.25 and a length of approximately 53.5 mm. Its hexagonal head provides a large contact area for increased torque transfer and improved resistance to shear and tensile loads. The high tensile strength of the bolt material ensures that it can withstand the rigors of regular use without failing or loosening over time.

The 3855961 396 block bolt is made of premium quality steel, which offers excellent strength and durability. Its surface finish is smooth and uniform, allowing for easy assembly and disassembly. The bolt head is designed with a recessed center, which helps to prevent the bolt from contacting other components during engine operation, reducing the risk of damage or wear.

This bolt is an essential replacement part for vehicles that have experienced wear or damage to their original fasteners. It is also suitable for use during engine rebuilds, restorations, or upgrades. Installing this bolt helps to ensure the structural integrity of the engine block and the overall performance of the vehicle.

In summary, the BBC 1965/1966 3855961 396 block bolt is a critical automotive fastener designed for use in British Motor Corporation vehicles from the mid-1960s. Its hexagonal head, high tensile strength, and premium quality steel construction make it an ideal replacement or upgrade option for vehicles requiring a robust and reliable fastener for their engine block.

Pros and Cons of Buying a BBC 1965/1966 396 Block Bolt

a) Authenticity: A BBC (Big Block Chevrolet) engine from the 1965 or 1966 period is a highly sought-after collectible among car enthusiasts. Owning a genuine part from this era can add value to your vehicle or collection.

b) Power: The BBC 396 block is known for its power and performance. It produces approximately 325-375 horsepower, depending on the specific configuration. This can provide a significant improvement in power and acceleration for your vehicle.

c) Durability: The BBC engine is known for its durability and reliability, making it a popular choice for restorations and high-performance applications.

d) Availability: BBC engines are relatively common on the aftermarket, allowing you to find one that suits your budget and requirements.

a) Cost: Authentic BBC engines, especially those in good condition, can be quite expensive. The cost of purchasing and installing one can be a significant investment.

b) Complexity: Installing a BBC engine involves a considerable amount of work, including engine alignment, transmission adaptation, and wiring. This can be a complex and time-consuming process.

c) Compatibility: Ensuring the compatibility of a BBC engine with your vehicle can be a challenge. You may need to make modifications to the engine bay, transmission, and other components to accommodate the larger BBC engine.

d) Weight: The BBC engine is heavier than the standard small-block engine, which can impact the handling and fuel efficiency of your vehicle.

The decision to buy a BBC 1965/1966 396 block bolt ultimately depends on your specific goals, budget, and resources. If you are a serious car enthusiast looking to enhance the performance and value of your vehicle, then the pros may outweigh the cons for you. However, if you are working with a limited budget or lack the necessary resources and expertise for the installation process, the cons may be more significant.

a) Determine your budget and requirements.

b) Research the availability and cost of authentic BBC engines on the aftermarket.

c) Assess your resources and expertise for the installation process.

d) Consider alternative options, such as performance upgrades for your existing engine or purchasing a pre-installed BBC engine from a reputable supplier.

e) Consult with a professional mechanic or restoration specialist for advice and guidance.

Details:

Std bore 4.096. Date code is a176. Casting # 3855961. 1965 -1966 two bolt main 396.

specifications engineblocksam:

• for models: 396
• brand: General Motors
• mpn: 3855961
• type: Engine Block

offer engineblocksam:

• sold #: 21
• availability: in stock
• started: february 23, 2025
• in stock #: 3
• price: $974.98
• item condition: Used
• options: seller-arranged-local-pickup

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• category: Auto Parts > Car Truck Accessories > Engines > Blocks

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