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The Supertech dual valve spring kit for GM Ecotec 2.0L engines is supplied for that valvetrain and notes that installation requires a smaller valve stem seal. Provided as matched dual springs, the kit is intended for Ecotec 2.0L heads where dual springing is specified. Plan to use a smaller seal as noted when replacing springs or rebuilding the Ecotec head.
Supertech GM ECOTEC 2.0L Dual Valve Spring Kit (Requires Smaller Seal)
