going carbed? you need this
 

I have a lt1- lt4 timing cover that has had the waterpump hole and the opti hole covered and welded very nicely and then powdercoated to a polished aluminum look. spent 250 dollars on having this finished. this is a nice top quality peice

115 dollars shipped

http://i33.photobucket.com/albums/d6...ngcover001.jpg

http://i33.photobucket.com/albums/d6...ngcover002.jpg

http://i33.photobucket.com/albums/d6...ngcover003.jpg