Roller rockers and stock rockers are two common types of rocker arms used in an engine. Roller rockers have been gaining popularity in recent years, with many car enthusiasts opting for this upgrade. However, some people still prefer to stick with the stock rockers. In this article, we'll compare roller rockers vs stock and help you decide which one is right for your engine.
What are Rocker Arms?
Rocker arms are used in engines to transfer the motion of the camshaft to the valves. The camshaft rotates, pushing the lifters up and down, which in turn moves the pushrods. The pushrods then move the rocker arms, which open and close the valves. The rocker arms act as a lever, amplifying the lift of the camshaft to open the valves.
Stock Rockers
Stock rockers are typically made of stamped steel or cast iron. They are simple and inexpensive to produce, which is why they are used in most car engines. However, they can be prone to flexing under high loads and can limit the lift and duration of the camshaft. This can result in reduced power and performance.
Roller rockers, on the other hand, use a roller bearing to reduce friction and improve valve lift. They are typically made of aluminum or steel and are stronger and more durable than stock rockers. Roller rockers are also adjustable, allowing for more precise valve timing and lift. This can result in increased power and performance.
Roller rockers offer several benefits over stock rockers. Firstly, they reduce friction and wear, which can improve engine longevity. Secondly, they allow for more precise valve timing, which can result in increased power and performance. Thirdly, they are stronger and more durable than stock rockers, making them ideal for high-performance engines.
Cost
One of the main drawbacks of roller rockers is their cost. They are significantly more expensive than stock rockers, which can put them out of reach for some car enthusiasts. However, if you're looking to improve the performance of your engine, the cost may be worth it in the long run.
Installation
Installation of roller rockers can be more complicated than stock rockers. They require more precise adjustment and may require additional modifications to the engine. If you're not comfortable working on engines, it may be best to have a professional install them for you.
Compatibility
Roller rockers may not be compatible with all engines. It's important to check the specifications of your engine before purchasing roller rockers to ensure compatibility.
Maintenance
Roller rockers require more maintenance than stock rockers. The roller bearings need to be regularly lubricated to prevent wear and damage. However, the increased performance and longevity of roller rockers may be worth the extra maintenance.
Conclusion
In conclusion, roller rockers offer significant performance benefits over stock rockers. They reduce friction, allow for more precise valve timing, and are stronger and more durable than stock rockers. However, they are more expensive, require more precise installation, and may not be compatible with all engines. If you're looking to improve the performance of your engine and have the budget for it, roller rockers may be a worthwhile investment.