I know there is a library in the SolidWorks site for CAD models submitted on there. I don't recall any engine parts modeled for Mopars. It would be neat to have a place on Moparts where people could upload models. I'd prefer people to post STEP files to make it easier for those that don't have access to SW. I haven't had any problems bringing in STEP or IGES files into any CAD program. I find the STEP files to be smaller than IGES and I don't think IGES is updating their conversion kernal.