At Shri Ram International; we are proud to be among the top engine valve manufacturers of premium engine valve train components Engine Valve Train Components. We invest in the latest technologies and equipment, enabling us to design and manufacture valve train components that meet the evolving demands of modern engines.


The engine valve train components may be hidden deep within the engine, but they are the unsung heroes responsible for coordinating the precise movements of valves, ensuring optimal engine performance. In this blog, we will take a closer look at these vital components, their functions, and how they contribute to the smooth operation of internal combustion engines.

  1. Valve Train Basics: The valve train comprises a series of interconnected components that work together to control the opening and closing of the engine valves. It includes camshafts, cam followers, pushrods, rocker arms, and valve springs. The camshaft, driven by the crankshaft, controls the timing and lift of the valves through lobes or cams. The cam followers, whether in the form of lifters or tappets, transmit the motion from the camshaft to the pushrods. The pushrods then transfer this motion to the rocker arms, which actuate the valves by pushing them open against the force of the valve springs.
  2. Camshaft Design and Technology Camshafts are crucial for controlling valve timing, duration, and lift, thus determining engine performance characteristics. Traditional camshafts have fixed profiles, but advancements in technology have led to the development of more sophisticated designs. For instance, performance engines often use variable valve timing (VVT) systems that allow adjustment of valve timing to optimize power delivery and fuel efficiency across different engine speeds.

Furthermore, the use of roller cam followers, which reduce friction and wear, has gained popularity. In contrast, some engines employ overhead camshaft (OHC) configurations, where the camshaft is located above the cylinder head, allowing for more direct valve actuation and increased efficiency.

  1. Pushrods, Rocker Arms, and Valve Springs: Pushrods, typically made of steel, transmit the motion from the camshaft to the rocker arms. They must be engineered to be lightweight yet strong to withstand the forces and stresses generated within the engine. Rocker arms, available in various designs such as stamped, roller, or needle-bearing types, are responsible for converting the linear motion from the pushrods into the rotational motion needed to open and close the valves.

Valve springs are crucial for maintaining valve control and preventing valve float (unwanted valve movement at high engine speeds). They ensure that the valves close rapidly and securely after opening. Modern engines often employ dual or variable-rate valve springs to accommodate higher engine speeds and improve valve control.

At Shri Ram International Engine Valve Train Components, our mission is to provide reliable, high-performance components that contribute to the success of our customers’ engine systems. We strive for excellence in every aspect of our business, from product quality to customer service.


Engine valve train components are the vital link between the camshaft and the valves, ensuring precise and coordinated movement. Through advancements in design, materials, and technologies, these components continue to evolve, contributing to the efficient operation and performance of internal combustion engines. Whether it’s optimizing valve timing, reducing friction, or improving valve control, the continuous innovation in valve train components plays a significant role in enhancing engine efficiency, power delivery, and overall driving experience. The next time you rev up your engine, take a moment to appreciate the intricate workings of the valve train components that power your vehicle’s performance.