I know what you mean. I love taking engines apart when they start making noises just to see if I can fix it.
I see what you ar saying. Summit has a assload of stuff for the LS.
My wife and I were talking about this today. Her dream car is a GTO Judge. Well, it turns out it is the body style she likes not neccassarily the Judge package. So I can get a LeMans and make nice and she would be happy with that. I made the statement that I would use a modern suspension and an LS in it. She flew off the handle at me. She said she wants to feel and hear that old engine under the hood. I could not for the life of me get her to see why an LS would be a better choice. Women...