fits model: A10.

( Brand: Bsa ), ( Manufacturer Part Number: 67-251 ), ( Part Type: Cylinder Head ), ( Country/region Of Manufacture: United Kingdom ), ( Placement On Vehicle: Left ), ( Surface Finish: Cast Iron )
The No. 67-251 BSA A10 Cast Iron Cylinder Head is a high-quality replacement part for BSA A10 motorcycles. This cylinder head is meticulously crafted from durable cast iron, ensuring it can withstand the rigors of regular use and high-performance riding.
The cylinder head features a 67mm bore, making it compatible with BSA A10 engines of the appropriate size. The head is equipped with two inlet and two exhaust valves, each with a valve guide and a valve seat, ensuring optimal engine performance. The valve angle is 36 degrees, which is known for its excellent combustion efficiency and power output.
The cylinder head also includes a camshaft housing, which securely holds the camshaft in place. The camshaft housing has a precision-machined camshaft journal that ensures a smooth and reliable operation of the camshaft.
The No. 67-251 BSA A10 Cast Iron Cylinder Head is designed to fit seamlessly into your BSA A10 engine. It is finished with a smooth, polished surface for an attractive appearance and easy installation. The head also comes with all necessary hardware for installation, including bolts and gaskets.
In summary, the No. 67-251 BSA A10 Cast Iron Cylinder Head is a reliable and high-performing replacement part for your BSA A10 engine. Its durable cast iron construction, precision-machined valves, and camshaft housing, as well as its easy installation, make it an excellent choice for any BSA A10 owner looking to maintain or upgrade their engine.
Pros of buying BSA A10 Cast Iron Cylinder Head (No.67-251):1. Durability: Cast iron is known for its strength and durability, making this cylinder head a reliable choice for long-term use.
2. Affordability: Compared to newer, more advanced materials, cast iron is often more cost-effective, which can be a significant advantage for budget-conscious buyers.
3. Availability: Older BSA models are still popular among classic motorcycle enthusiasts, so replacement parts like this cylinder head are relatively easy to find.
Cons of buying BSA A10 Cast Iron Cylinder Head (No.67-251):1. Weight: Cast iron is heavier than other materials like aluminum, which can affect the performance and handling of the motorcycle.
2. Heat retention: Cast iron has a lower heat conductivity than aluminum, which can cause the engine to overheat in hot weather or during prolonged use.
3. Maintenance: Cast iron cylinder heads may require more frequent maintenance and cleaning to prevent buildup of carbon deposits and other debris.
Conclusion:If you're a classic motorcycle enthusiast looking for a reliable and affordable replacement part for your BSA A10, the No.67-251 cast iron cylinder head is a solid choice. However, be aware of the potential drawbacks such as weight and heat retention, and plan accordingly. Regular maintenance will help ensure the longevity of the cylinder head and keep your motorcycle running smoothly.
Recommendation:Consider purchasing the BSA A10 Cast Iron Cylinder Head (No.67-251) if you're looking for a durable and cost-effective replacement part for your classic BSA A10. Be sure to maintain the cylinder head regularly to extend its lifespan and keep your motorcycle running optimally.
This head is in good condition, with no broken fins and threads, however as seen the last picture there are opposing holes drilled exhaust port flanges. Shipping weight.
Up for bid is a used Bsa cylinder head. Ready to assemble with cast iron valve guides in place. Offered here is a used original factory Bsa A10 cast iron cylinder head, part no.