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After seeing so much about the fabulous titanium con rods, forged steel cranks, etc. on the LS9, and some of the cool stuff on the LS7, I always wondered just what the guts in my LS3 were made of. Here's a good place to find out:
I've linked that article several times when someone asks about LS engine specs and differences because I can't remember all that info. The same article is available via Wikipedia too.