An overhead valve engine, abbreviated (OHV) and sometimes called a pushrod engine, is a piston engine whose valves are located in the cylinder head above the combustion chamber.

Feb 2, 2024 · A pushrod is a metal tube that transmits the reciprocating motion of a valve lifter to the valve. It sits on the valve lifter and rises into the rocker arm. Pushrod engines usually have …

Apr 25, 2025 · A pushrod engine, commonly referred to as an overhead valve (OHV) engine, operates using pushrods to actuate its valves.

Jul 31, 2024 · First, we should probably discuss the three main pushrod parameters that identify a pushrod. The first is diameter. This is the outer diameter of the pushrod at its thickest point. …

Sep 9, 2024 · The pushrod engine, also known as the overhead valve (OHV) engine, is a classic internal combustion engine configuration that has been widely used in automobiles for decades.

Mar 4, 2025 · A pushrod’s diameter and wall thickness play an important role in performance and valvetrain stability, particularly in racing engines. A larger diameter adds stiffness by spreading …

Feb 3, 2025 · When building or maintaining a high-performance engine, it’s easy to focus on components like rocker arms, camshafts, or valves. However, one often-overlooked part plays …

We will quiz you to help us determine what ends you need on your pushrods. For many of the common engines we know the radius of the stock pushrod tips, but when rebuilding and/or …

May 23, 2024 · What is a Push Rod? A push rod is a part of an internal combustion engine that rests in the top of a valve lifter and goes up into the rocker arm. As the lifter follows the cam …

Sep 23, 2018 · Regardless of an engine’s design, if the camshaft is located in the block, a pushrod is required to transfer motion from the camshaft’s lobe to the valve. The pushrod’s …