Ditto on BobCRman, align hone/bore here is right around 150.00 bucks...im having my block done right now. Just my opinion, but I would not use a crank ground that much if you're looking to beat on it occasionally...Mine is ground .020, and I wont go any more, but as I said, that's just my .02.... And as far as Eagle products, I wont buy them...quality control is terrible...cranks have been known to be off several thousanths between throws, and in several other areas....my machinist wont use them either. Scat is OK, they're from over seas too, but their machine work and QC is done here in the US....much tighter controls...and there is actually nothing wrong with stock GM parts. John