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The set that I just installed (as described in the October press release) is a newly designed one made by Federal-Mogul, being sold as Fel-Pro. They are specifically designed to resist the orange OAT coolant corrosion issues. The seal bead consisted of three tiny vanes, and was made of a red-orange synthetic rubber. The entire kit also cost less than just the Lower Intake pair being sold by GM.
Correct me if I am wrong, but I believe that the "new" gasket that GM has been installing since early '03 contains the same old blue rubber bulb seal, but added the guides for the lifters which is used on the M coded 3100 SFI engine that was installed in the '98 and newer Malibus.
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