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The Industrial Injection race cylinder head for 2003–2007 Dodge 5.9L applications features fire rings and ported valve bowls to improve combustion sealing and flow for high-output builds. These heads are aimed at race-oriented engine assemblies where increased airflow and durability at high load are required. They are suitable when a ported head is part of a larger top-end performance package.
Industrial Injection 03-07 Dodge 5.9L Engine Fire Ring / Ported Valve Bowls
