Forged 6.1 rods and pistons

I do know when the main bolts are swapped to ARP studs you have to line hone the block. So I wouldn't change from factory main bolts if you're not doing any machine work.

Also, there is one group making forged pistons with the same weight as the factory pistons, so theoretically you don't have to rebalance the rotating assembly. Granted, that leaves you with the stock rods, which are probably good for 600-700 hp, depending on what you put them through. If I recall, USCG is running stock rods in his 6.1 with the KB supercharger, with somewhere over 630-650 rwhp?

http://www.lxforums.com/board/f288/dave-weber-modern-muscles-pistons-real-deal-302419/

http://www.lxforums.com/board/f364/group-buy-forged-6-1l-stock-pistons-276830/

This would be a great option for a mild boost (up to 12 psi) motor. If you're going to stroke it eventually and just run it N/A until that point, then just leave it stock, in my opinion.