Upgrade your LS1 or LS6 engine with the Speedmaster PCE261.1149 Aluminum Shaft Rocker Arms Set. Featuring a performance 1.8 rocker ratio, these rockers are designed to increase valve lift over stock, helping unlock additional power and throttle response from your GM LS-based engine. The aluminum construction keeps weight to a minimum, reducing valvetrain mass for improved high-RPM stability and durability.
This complete set includes all necessary hardware, making installation straightforward and convenient. Engineered specifically for Chevy GM LS1 and LS6 applications, these shaft-style rocker arms provide improved valvetrain geometry and consistent rocker-to-valve contact compared to stud-mounted designs, making them a solid choice for street performance and track-day builds alike.
