Generally, I like to use my original parts. However, over the years I had deformed the pan flange due to over tightening to the point where it had very slight leakage. I liked the appearance of the aluminum pans, the beefy flange and the convenience of having a drain plug since I'd drenched myself and messed up the garage floor too many times over the years. So, I ordered a cheap pan from Skip White on eBay (
http://www.ebay.com/itm/GM-TURBO-400...da829f&vxp=mtr). It looks great and after a year or two, doesn't leak. Just depends on what YOU want.