GM LS OIL PAN PRESSURE RELIEF VALVE BLOCK OFF PLUG
This block off plug is a common add-on when doing a AFM/DOD and/or VVT delete on Gen IV engines. The block off plug eliminates the secondary oil pressure relief valve in the oil pan, which has been known to sometimes get stuck and create oil pressure issues.
NOTE: MUST BE used with a standard volume oil pump and is NOT recommended to be installed with a high volume oil pump.
