Hyd. Roller Camshaft LS DOD Delete

The Chevrolet Performance Hydraulic Roller Camshaft LS DOD Delete (Part Number 12689035) is a direct replacement camshaft engineered for GM LS-series engines equipped with hydraulic roller lifters. This component eliminates Displacement on Demand (DOD) solenoid actuation, delivering consistent valve lift across all engine speeds without the variable displacement system's added complexity. The camshaft specifications include 0.466-inch intake lift and 0.457-inch exhaust lift, with 190-degree intake and 191-degree exhaust duration measured at 0.050-inch valve lift, and a 114-degree lobe separation angle that provides reliable idle quality and drivability characteristics.

The hydraulic roller design minimizes wear on both the camshaft lobes and lifters during extended operation, critical for engines running higher RPM ranges or sustained power delivery. Eliminating DOD complexity removes potential failure points associated with solenoid stiction, variable valve timing lag, and oil control passages common in factory DOD systems. The 114 LSA timing creates a torque-friendly profile suited for street and mild performance applications, avoiding the aggressive phasing that demands high fuel octane or specialty tune-ups. At 10.35 pounds, this camshaft integrates directly into existing LS-series engine blocks without modification to valve covers, pushrods, or rocker arm geometry.

This camshaft serves operators and enthusiasts building or refreshing LS-based engines who prioritize reliability and straightforward maintenance over maximum peak horsepower. Whether for tow vehicles, off-road platforms, or street-driven high-mileage builds, the DOD delete strategy eliminates a known wear point while preserving the fuel efficiency and part interchangeability that make LS engines dominant in powersports and tactical vehicle builds. OEM Chevrolet Performance quality ensures proper metallurgy and lobe geometry for long-term durability.