fits make: Bmw.

( Manufacturer Part Number: HD1187B ), ( Type: Cylinder Head ), ( Oe/oem Part Number: 1721464 )
The BMW HD1187B 1.8L M42B18 Bare Cylinder Head is a high-quality component for those who are looking to upgrade or repair their BMW engine. This cylinder head is specifically designed for the BMW M42B18 engine, which was widely used in various BMW models such as the 3 Series and Z3 from the 90s and early 2000s.
The HD1187B cylinder head is made of aluminum, which is lightweight yet strong, providing excellent heat dissipation and durability. It features four valves per cylinder, with a single overhead camshaft (SOHC) that is driven by a toothed belt. The head is equipped with a single spark plug per cylinder, which is typical for the M42B18 engine.
One of the standout features of this cylinder head is its double-overhead camshaft (DOHC) design, which is not originally found in the M42B18 engine. This modification allows for improved valve actuation, resulting in better engine performance and efficiency. The HD1187B cylinder head also includes new valve guides and seats, ensuring a proper seal between the valves and the head, reducing leakage and improving combustion efficiency.
The cylinder head comes in a bare form, meaning it does not include any additional components such as the intake and exhaust manifolds, cylinder head studs, or gaskets. This provides flexibility for the customer to choose their preferred aftermarket components that best suit their specific needs and preferences.
In summary, the BMW HD1187B 1.8L M42B18 Bare Cylinder Head is a high-performance upgrade or replacement cylinder head for the M42B18 engine. The DOHC design, improved valve guides, and lightweight aluminum construction make this cylinder head an excellent choice for those looking to enhance their BMW's engine performance.
Pros of buying BMW HD1187B 1.8L M42B18 Bare Cylinder Head:1. Cost-Effective: Purchasing a bare cylinder head can be more cost-effective compared to purchasing a fully assembled engine or even a remanufactured head.
2. Customization: A bare cylinder head allows for customization, such as upgrading the valves, installing new camshafts, or porting the head for better engine performance.
3. Availability: Bare cylinder heads are often more readily available than fully assembled engines, especially for older BMW models.
4. DIY Opportunity: For those with the mechanical skills and time, installing a bare cylinder head can be a rewarding DIY project.
Cons of buying BMW HD1187B 1.8L M42B18 Bare Cylinder Head:1. Requires Knowledge and Skills: Installing a bare cylinder head requires a good understanding of engine mechanics and the necessary tools.
2. Risk of Damage: If not installed correctly, there is a risk of damaging other engine components or causing engine issues.
3. Time-Consuming: Installing a bare cylinder head can be a time-consuming process, especially for those who are not experienced with engine work.
4. Potential Compatibility Issues: There may be compatibility issues between the bare cylinder head and other engine components, such as the intake or exhaust system.
Conclusion:Buying a BMW HD1187B 1.8L M42B18 Bare Cylinder Head can be a cost-effective and customizable option for BMW enthusiasts with the necessary mechanical skills and time. However, it requires careful consideration and the potential for compatibility issues, damage, and time-consuming installation. It is recommended to thoroughly research the installation process, gather all necessary tools and components, and consider seeking professional assistance if needed. Ultimately, the decision to purchase a bare cylinder head should be based on individual skill levels, budget, and desired engine performance.
Pressure tested to insure no leaks in casting. Milled to ensure straightness and correct finish. Guide work performed/replaced with new guides or liners as needed. Remanufactured Cylinder Head.
1- Remanufactured Bare Cylinder head Ready for assembly no valves, springs, cams etc. Thoroughly cleaned and inspected. Cut valve seats. 1989 95 1.8L BMW M42B18 engine.
Process Includes.