SKU: GMP12681275
MPN: 12681275
The Chevrolet Performance SBC Rocker Arm (part number 12681275) is an essential valve train component specifically designed for small-block Chevrolet engines, particularly those requiring OEM-quality replacements or performance upgrades. This rocker arm is ideal for mechanics and engine builders who are rebuilding or modifying engines such as the 350, 383, or 400 cubic-inch SBC.
Constructed from hardened steel, this rocker arm is engineered to withstand high RPM loads and cam lift pressures, ensuring durability and performance. Its design allows for precise valve actuation, maintaining the correct geometric relationships between the pushrod and valve stem, which is crucial for optimal engine performance. The rocker arm's mechanical advantage ratio and pivot geometry are calibrated for stock and mildly modified cam profiles.
This component is particularly beneficial for those working on small-block Chevrolet engines, as proper rocker arm selection helps prevent valve stem recession and reduces valvetrain noise. It is suitable for both street applications and performance builds, ensuring consistent valve operation across the powerband.
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