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  1. 8

    Sealed Power L2481F30 - Speed-Pro Powerforged Buick Pistons

    Are these truly 'forged' or are they merely re-badged 'hyper' pistons. I find it VERY hard to believe they are forged, but if so, I may give them a whirl. My experience is that Jegs has minimal perf parts for our applications, so I am very skeptical. I have 'limited' experience with these forged...
  2. 8

    Valvebody Differences

    I'm sorry to sound like a noob, but when it comes to tranny's, I have a LOT to learn. I am currently taking a trans rebuilding class and I am trying to apply what I am learning to the 2004r and I have a couple questions. Maybe somebody with a more definitive knowledge of these cars could give me...
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