I was looking on the GM depot site and i found the alumiumn(i know can't spell) and it said that the block can be bored out to a 5.2!?!?! Dose anyone know how much ours can be bored out to? bad part is i'd have to get a damn billet crank....god thats gona cost a lot. but dose anyone know how big we can go on the stock block? i know i just dump a V-8 in but i think it'd be a bigger bite in the ass to take down people with a V-6 Dose anyone think it would be worth the money in the future(like after 80-100,000 miles) to buy the aluminum block?? the site is http://www.gmpartsdirect.com/performance_parts/frameset.cfm and the part number is 10134371 it cost a pretty penny so this isn't gonna be one of those anytime soon protects just lookin towards the future.