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#4
06-22-2023, 02:37 AM
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FYI,the forged 58-62 rods were called the rubber rods,low heat treating.The next were better but not as good as the 421SDs.Myself I would use aftermarket forged over any of the factory early forged rods.The 421 HO I’m driving I actually used the 69-70 cast rods over the early forged.Tom
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