RTS GM LS retrofit engine oil pans are designed to install an LS engine in a variety of GM musclecar and truck chassis. They provide OEM fitment, OEM oil filter mounting, OEM oil cooler port provision, OEM engine NVH suppression, OEM flange gasket and sealing, proper structural rigidity, and OEM bellhousing attachments. The oil pans are manufactured from traditional high-quality cast aluminum and include a sump baffle, oil pump pickup tube, sump plug, oil filter stud, and oil passage cover.