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yep, I can and probably will. Anybody have any idea of typical balance variations stock and machine shop wise?

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I have never weighed any of the stock rods or pistons before having them balanced, I have weighed rods and shot for + or - 3 grams in picking the rods and made sure that they where within + or -.003 on the center to center length before starting. Most of the good automotive balnancing shops will shoot for + or - 1/2 to one gram on the rods and pistons . You can take those pistons to a good machine shop and have the 5 grams removed and use them that way. Five grams is a lot of aluminum to remove from a piston, take that from me. I have done that and I will take all of the pistons I need rebalanced to a shop from now on