5.3 LS w/ AC & amp; Low Ram Intake – STL FileProduct Overview The 5. 3 LS w AC & Low Ram Intake STL file is intended for builders and fabricators who need a 3D reference model for mock ups, layout planning, and visualization. This digital file represents a 5. 3L LS engine equipped with air conditioning and a low ram intake manifold, making it ideal for engine swap planning, accessory clearance checks, hood clearance verification, and fabrication mock ups. Whats Included STL file for 5. 3 LS w AC