V6 and V12 Car Engines with Full Internal and External Parts 3D Model Pack 3D model is available on CGTrader for $459. Original author: markos3d.
STL (Stereolithography, filesize: 1020 MB), OBJ (OBJ, filesize: 838 MB), 3DS (3D Studio, filesize: 286 MB), C4D (Cinema 4D, filesize: 509 MB), MAX (Autodesk 3ds Max, filesize: 137 MB), FBX (Autodesk FBX, filesize: 1.16 GB), LWO (Lightwave, filesize: 915 MB), MA (Autodesk Maya, filesize: 324 MB), HRC (Autodesk Softimage, filesize: 1.15 GB), BLEND (Blender, filesize: 931 MB)