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Ferrea’s spring kit for 2010–2016 Ford EcoBoost 3.5L engines is a direct‑fit valve spring package tailored to that EcoBoost V6. Offered as a matched kit, it supplies the replacement springs required for valvetrain service or component swaps on 3.5L EcoBoost heads. The kit is presented for Ford EcoBoost 3.5L applications from the 2010–2016 model years.
Ferrea 10-16 Ford Ecoboost 3.5L Spring Kit
