It has electric fans. The LS1 doesnt have provisions for a engine mounted fan.

http://i47.photobucket.com/albums/f197/red...-03-2006013.jpg
http://i47.photobucket.com/albums/f197/red...-03-2006012.jpg
http://i47.photobucket.com/albums/f197/red...-03-2006009.jpg
http://i47.photobucket.com/albums/f197/red...-03-2006008.jpg
http://i47.photobucket.com/albums/f197/red...-03-2006007.jpg
http://i47.photobucket.com/albums/f197/red...-03-2006006.jpg

It's a work in progress. Still trying to decide where to mount the PCM and how to fab the radiator mount.