Universal Oil Pressure Relief Valve for Engine Protection
For LS and LT engine swaps into older chassis, controlling oil pressure spikes is critical and the CLEARANCE-Oil Pressure Relief Valve was engineered to clamp excess flow precisely where it originates. By installing inside the pan directly above the filter, the valve intercepts pressures that exceed GM factory limits for Gen 4 VVT and AFM engines before they impact bearings and seals. Its calibrated spring assembly is matched to the original cracking pressure so variable valve timing and cylinder deactivation routines stay consistent with factory behavior under varied loads. Together these features deliver steady supply through filter bypass channels and protect Chevy and GM truck mills from damaging surges during sudden throttle shifts or towing.
Strategic In Pan Placement for Immediate Pressure Relief
By locating the valve directly above the oil filter inside the pan, overpressure is detected and relieved at its source. This strategic positioning means the device taps into the factory bypass channel, minimizing internal oil volume and delivering quicker reaction when pressures exceed safe limits. The short internal path reduces turbulence and stops pressure spikes from propagating into bearings and seals. In practice, this design keeps lubrication steady during sudden throttle changes or tight cornering, preserving engine integrity under demanding conditions.
Precision Spring Calibration to GM Factory Limits
The heart of the relief valve is its spring assembly, meticulously tuned to match GM's original cracking pressure specifications for Gen 4 VVT and AFM engines. This careful calibration ensures that variable valve timing and cylinder deactivation functions remain unhindered, with oil pressure rising and falling exactly as the factory engineered. By replicating the OE relief threshold, cam phasing events occur under stable flow and deactivated cylinders still enjoy proper lubrication. The result is seamless integration with engine controls and consistent performance across load changes.
Simple Installation for LS and LT Engine Swaps
Designed for straightforward fitment, the valve installs at the stock filter location once the pan is removed, requiring no extra machining or adapters. It seats on the factory gasket surface, so you only need basic hand tools and a torque wrench to secure it. This streamlined process cuts shop hours and limits the chance of error, making it ideal for fresh engine swaps or routine service. Whether you are working on an LS, a DOD block, or any VVT application, the setup remains consistent and reliable.
Steady Oil Flow for Long Term Engine Protection
Unchecked pressure surges can degrade seals, bore plug gaskets, and bearings, leading to leaks or premature failure. This relief valve clamps peak pressure at the correct threshold to prevent cavitation and foam that starve critical surfaces of oil. Maintaining a stable lubrication film under heavy loads and high rpm extends the life of cam lobes, lifters, and crank bearings. By controlling spikes, the valve supports lower wear rates, longer service intervals, and overall engine durability for Chevy and GM truck platforms.
Count on the CLEARANCE Oil Pressure Relief Valve for precise pressure control and enduring engine protection.