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These are New Ford Racing Production Cylinder Head Castings that increase Flow and Performance to your Mustang. The Intake Flow is increased appoximately 20% and the Exhaust Flow is increased appoximately 30%. These Heads are assembled with Production Springs, Valves, Retainers, Locks, and Seals that ready for action. Minimize your vehicles down time waiting for a shop to Port your Heads. Get a brand new Head for a little more than the price of Exchange! |
