My 317 heads off my Silverado SS (03) with roughly 120k miles on them, and now STOCK SPRINGS!!!I cleaned the head up using a port and polishing kit, (no they are NOT ported or "polished") 200$ OBO + shipping
http://i25.photobucket.com/albums/c9...e/IMG_0025.jpg
http://i25.photobucket.com/albums/c9...e/IMG_0024.jpg
http://i25.photobucket.com/albums/c9...e/IMG_0023.jpg

