BSA 67-3345 Engine Cylinder Head B31 65-1157

( Brand: Bsa ), ( Manufacturer Part Number: 67-3345 ), ( Engine Type: 4-stroke ), ( Type: Cylinder Head Assembly )

Review BSA B31 Engine Cylinder Head Assembly Oem fits 350

BSA 67-3345 B31 350 Engine Cylinder Head 65-1157

The BSA 67-3345 B31 350 engine cylinder head 65-1157 is a vital component of the classic BSA 350cc engine, renowned for its powerful and reliable performance. This cylinder head is meticulously designed and manufactured to ensure optimal engine efficiency and longevity.

The head is crafted from high-quality aluminum alloy, providing excellent heat dissipation and durability. Its intricate design includes four inlet ports and one exhaust port, each meticulously machined for precise air-fuel mixture delivery and efficient exhaust gas expulsion. The head also features a unique inlet manifold design that optimizes the fuel-air mixture for each cylinder, enhancing combustion efficiency.

This BSA cylinder head is equipped with two valves per cylinder, each operated by a robust overhead camshaft. The valves are adjustable, allowing for fine-tuning of the engine to achieve optimal performance. The head also includes a pair of cooling fins that run along the exterior perimeter, ensuring efficient heat dissipation even during prolonged use.

The cylinder head also features a hard-anodized surface finish on the combustion chamber, providing excellent wear resistance and durability. This ensures that the engine can withstand the rigors of high-performance riding and daily use.

Additionally, this BSA cylinder head is compatible with various accessory kits, including high-performance camshafts, performance valves, and other engine upgrades, enabling riders to customize their engines for enhanced power and torque.

In summary, the BSA 67-3345 B31 350 engine cylinder head 65-1157 is a high-quality, durable, and performance-enhancing component that is essential for maintaining the optimal operation of your classic BSA 350cc engine. Its intricate design, robust construction, and compatibility with various performance upgrades make it an indispensable part of any serious BSA enthusiast's toolkit.

The BSA 67-3345 B31 350 engine cylinder head 65-1157 is a motorcycle engine component, specifically designed for the BSA A10 model. Here are some pros and cons of buying this cylinder head:

1. OEM (Original Equipment Manufacturer) part: This cylinder head is a genuine BSA replacement part, ensuring a perfect fit and compatibility with the engine.

2. Enhanced performance: This cylinder head is known for its ability to deliver improved engine performance, including increased horsepower and torque.

3. Durability: The BSA cylinder head is engineered to withstand the rigors of motorcycle use, providing long-lasting performance and reliability.

4. Improved cooling: This cylinder head comes with improved cooling capabilities, reducing the risk of engine overheating and damage.

5. Higher compression ratio: The cylinder head offers a higher compression ratio, resulting in better fuel efficiency and engine response.

1. Cost: OEM parts can be more expensive than aftermarket alternatives, and the BSA cylinder head is no exception.

2. Availability: Due to its vintage nature, it may be difficult to find this cylinder head in stock at local motorcycle shops or dealerships.

3. Installation complexity: Installing a cylinder head on a motorcycle engine can be a complex process, best left to experienced mechanics or engine builders.

The BSA 67-3345 B31 350 engine cylinder head 65-1157 is a high-quality, OEM replacement part that offers several advantages, including enhanced performance, durability, improved cooling, and a higher compression ratio. However, its cost and availability may be limiting factors for some motorcycle enthusiasts. Ultimately, the decision to purchase this cylinder head depends on individual preferences, budget, and the importance of having a genuine OEM part for their BSA A10 motorcycle.

If you are a dedicated BSA A10 owner and prioritize having a genuine OEM part for your engine, or if you value the performance improvements this cylinder head provides, then purchasing the BSA 67-3345 B31 350 engine cylinder head 65-1157 is a worthwhile investment. However, if cost is a significant concern, you may want to consider aftermarket alternatives or rebuilding your existing cylinder head. It is essential to weigh the pros and cons carefully and consult with a professional mechanic to ensure a successful installation.

Details:

Some parts are from bikes taken apart previously and have been on the shelf awhile. Happy buying. What you see is what get. All parts sold as is.

It may fit other model's as well.

part #: 673345 prices

• $87.00-$139.99

specifications cylindermotorcycleiz:

• for models: 350
• brand: Bsa
• mpn: 67-3345
• engine type: 4-stroke
• type: Cylinder Head Assembly

payments cylindermotorcycleiz:

• wallet: Paypal
• other
• credit card: Mastercard

seller cylindermotorcycleiz:

• rating: 99.7%
• # reviews: 4468
• city: Menifee, California

general cylindermotorcycleiz:

• condition: Used
• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Cylinder Heads

offer cylindermotorcycleiz:

• quantity: 1
• best offers: True
• started: July 24, 2025
• sold: 0
• availability: In Stock
• options: Ship-to-home

shipping cylindermotorcycleiz:

• service: Standard
• class: Standard
• transit: 4-8 Days
• cost: $25.00
• type: Fixed

returns cylindermotorcycleiz:

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

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