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The Brian Crower high‑lift valve spring and retainer kit for Honda K20A/K20Z and F20C/F22C engines supplies direct‑replacement valvetrain components to support higher cam lift. The kit includes dual valve springs, steel retainers and seat hardware to maintain valve control and stability during aggressive cam profiles, making it suitable for head rebuilds or high‑lift cam upgrades where consistent spring force and fitment matter.
Brian Crower Honda K20A/K20Z F20C/F22C-High Lift Spring - Dual Spring/Steal Retainer/Seat Kit
