Katech Engineering LLC - Valvetrain Components

Valvetrain Components for LS & LT Engines

This category includes valvetrain components responsible for controlling the opening and closing of intake and exhaust valves in LS- and LT-based engines. The valvetrain converts camshaft rotation into controlled valve motion, directly influencing airflow, combustion efficiency, and overall engine performance.

Components in this category include camshafts, lifters, pushrods, rocker arms, valves, valve springs, retainers, locks, guides, and seals. Each component functions as part of a mechanically linked system, where geometry, stiffness, mass, and load characteristics must be matched to maintain stable valve motion across the intended operating range.

Camshaft profile selection determines valve lift, duration, and event timing. Lifters translate cam lobe motion into linear movement, which is transferred through pushrods to rocker arms that actuate the valves against spring force. This pushrod valvetrain architecture requires proper geometry and alignment to maintain consistent valve events.

Valve springs and associated hardware are responsible for maintaining contact between valvetrain components and the camshaft across the engine speed range. In high-performance applications, insufficient spring control can result in valve float, loss of valve control, and accelerated component wear.

Lifter design, pushrod length, and overall valvetrain geometry directly influence preload stability, component alignment, and dynamic response. Proper component selection and setup are required to maintain consistent valve motion, minimize deflection, and support durability under increased cylinder pressure and elevated engine speeds.

These components are intended for LS- and LT-based engines and similar pushrod architectures where valvetrain stability is critical to performance, reliability, and long-term operation.