• High Compatibility: Fits most GM Gen III and IV LS-series small block oil pans with oil cooler ports located above the oil filter.Upgraded replacement for (OE GM part # 12577903)
  • High Quality Material:The bypass cover is CNC-machined from billet 6061-T6 aluminum and anodized in black. It features a large ported internal cavity with smooth features to improve flow characteristics when compared to the factory diecast bypass cover
  • Parts Included:Includes an upgraded gasket made from high-temp FKM rubber bonded to aluminum for a reliable, leak-free seal,Two zinc-plated steel flanged hex head mounting screws
  • Easy Installation:All accessories are complete,Place the LS oil cooler block off plate and Gasket tightly to the corresponding position of the oil pan and tighten the screws