TL;DR: GM LS Rear Sump Low-Profile Retro-Fit Oil Pans 302-2, 81073 Swap GM LS LS1 LS2 LS3 1955-1987 | SPEALB OVERVIEW Composed of lightweight cast aluminum, SPELAB's low-profile, retro-fit oil pan is designed to allow for increased clearance to the ground and chassis. It will fit many GM rear-wheel drive a…