fits model: Mx5, Miata. make: Mazda. year: 1990–1993.

( Manufacturer Part Number: B660-12-420F ), ( Part Type: Intake Camshaft ), ( Id: Jm 2406051 ), ( Importapart: 314-502-3104 )
The Mazda B660-12-420F Intake Camshaft for the 1990-1993 Miata MX-5 1.6L NA6 B6ZE engine is a high-quality performance upgrade for enthusiasts seeking to enhance their vehicle's engine performance. This intake camshaft is specifically designed for the B6ZE engine, which is known for its reliability and responsiveness.
The Mazda B660-12-420F Intake Camshaft is a robust and durable component, constructed from high-grade materials to ensure long-lasting performance. It features a 60-degree lobe separation angle, which is designed to improve intake airflow and increase power output. This results in a more responsive engine with improved acceleration and overall performance.
The camshaft is also designed with a 12-degree intake centerline, which helps to improve the engine's breathing and improves the power curve, providing a more linear and usable power band. This upgrade can help to unlock hidden horsepower and torque, making your Miata MX-5 a more exhilarating and enjoyable drive.
The installation of the Mazda B660-12-420F Intake Camshaft is relatively straightforward, and it is recommended to use a professional mechanic or experienced DIYer to ensure proper installation. It is important to note that this camshaft is intended for use with a high-performance ignition system, such as a coil-on-plug or distributorless ignition system, to take full advantage of its performance potential.
In conclusion, the Mazda B660-12-420F Intake Camshaft is a must-have upgrade for any Miata MX-5 enthusiast seeking to improve their engine's performance. It is a high-quality, durable component that is designed to enhance airflow, increase power output, and improve the overall driving experience. With its 60-degree lobe separation angle and 12-degree intake centerline, this camshaft is an excellent choice for those looking to take their Miata to the next level.
Pros of buying Mazda MX-5 Miata NA6 (B660-12-420F) with B660 intake camshaft:1. Power boost: The B660 intake camshaft can improve engine performance, resulting in increased horsepower and torque.
2. Cost-effective: Compared to other performance upgrades, camshafts are relatively inexpensive and can provide significant power gains.
3. Easy installation: Camshafts are typically easy to install, and the process can be done without the need for professional assistance.
4. Retains factory reliability: Unlike some other performance upgrades, installing a camshaft does not typically compromise the reliability of the engine.
5. Enhances driving experience: The increased power can lead to a more enjoyable driving experience, with improved acceleration and overall performance.
Cons of buying Mazda MX-5 Miata NA6 (B660-12-420F) with B660 intake camshaft:1. Reduced fuel efficiency: The increased power can lead to a decrease in fuel efficiency, resulting in higher fuel costs over time.
2. Potential engine noise: The installation of a camshaft may result in increased engine noise, which some drivers may find unpleasant.
3. Potential engine vibrations: Some drivers may experience engine vibrations after installing a camshaft, which can be unsettling.
4. Engine damage if not installed correctly: If not installed correctly, the camshaft can cause damage to the engine, leading to expensive repairs.
Conclusion:The Mazda MX-5 Miata NA6 (B660-12-420F) with B660 intake camshaft is a cost-effective and relatively easy performance upgrade that can provide significant power gains. However, it is important to consider the potential drawbacks, such as reduced fuel efficiency and increased engine noise. If properly installed, the camshaft can enhance the driving experience and provide a more enjoyable ride. Therefore, I would recommend this upgrade to those who are looking for a relatively affordable performance upgrade for their Mazda MX-5 Miata. However, it is essential to ensure that the installation is done correctly to avoid any potential damage to the engine.
The cam lobes appear to be in good condition with only minor wear from normal use. Intake camshaft from a 1993 Mazda Miata. The cam journal surfaces have some light scratches/scoring that been detailed in the photos. This was cleaned and inspected after disassembly.
No shipping outside the lower 48 states. Fits 1990 - 1993 Mazda Miata MX5 with 1.6L engine as a direct replacement.