Improved Racing LS Oil Pan Pressure Relief Valve Plug Kit

  • Use this plug to delete the secondary pressure relief valve present in some LS oil pans
  • The secondary pressure relief valve can sometimes get stuck, causing oil pressure issues
  • Typically, the secondary pressure relief valve may be deleted if:
    • Active Fuel Management (AFM) and Variable Valve Timing (VVT) have been deleted
    • The oil pump has been swapped to a standard volume oil pump



Purchase and earn 8 SSOnly Points worth $0.08! *Must be logged in.
SKU: PO-M14-KIT Categories: , , Tags: , ,

Certain LS-based vehicles feature an M14x1.5 pressure relief valve inside the oil pan. This valve is used to bypass excess oil pumped by the high-volume oil pump when Active Fuel Management and Variable Valve Timing are not active.

For those who have deleted AFM/DOD and have installed a standard volume oil pump, the pressure relief valve may generally be removed and plugged. Part no. 814-M14-KIT comes with a M14x1.5 plug and crush washer to ensure a proper seal.

Note: Removing this valve is not recommended for engines that have a high volume pump. The high volume pump must be replaced with a Melling M295, 10295, 10296, or similar pump to safely eliminate the pressure relief valve in the oil pan.


  • Aluminum alloy M14x1.5 plug
  • Crush washer


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

You have not viewed any product yet.