{"product_id":"2003-2007-cummins-5-9l-stage-1-performance-cylinder-head-w-fire-ring-head-gasket-djpch100202","title":"2003-2007 Cummins 5.9L Stage 1 Performance Cylinder Head w\/ Fire Ring \u0026 Head Gasket (DJPCH100202)","description":"\u003ch6\u003eFitment\u003c\/h6\u003e\n\u003ctable style=\"width: 100%;\" width=\"100%\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 20%; text-align: center;\"\u003e\u003cstrong\u003eYear\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 20%; text-align: center;\"\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30%; text-align: center;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 30%; text-align: center;\"\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 20%; text-align: center;\"\u003e2003-2007\u003c\/td\u003e\n\u003ctd style=\"width: 20%; text-align: center;\"\u003eDodge\u003c\/td\u003e\n\u003ctd style=\"width: 30%; text-align: center;\"\u003eRam 2500, Ram 3500\u003c\/td\u003e\n\u003ctd style=\"width: 30%; text-align: center;\"\u003e5.9L Cummins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cp\u003eThe 2003-2007 5.9 Stage 1 Cummins Performance Cylinder Head is designed to deliver increased airflow and durability without the added cost and complexity of an aftermarket intake. Featuring 105-pound valve springs and a 5-axis CNC port job, this head significantly boosts intake flow from 155 CFM to 220 CFM, improving low-end performance, reducing boost pressure, and lowering EGTs. Built on the foundation of the HP Reman Head, it includes new bronze guides, oversized hardened seats, and a high-performance CNC valve job for enhanced longevity and efficiency. Manufactured by D\u0026amp;J Precision Machine, this cylinder head is a proven upgrade for both stock and performance-driven Cummins builds. This SKU includes a custom-matched Fire Ring gasket for high-boost head-to-block sealing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e DJPCH100202\u003c\/p\u003e\n\u003ch6\u003eFeatures\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e5-Axis CNC Ported for Increased Flow: Intake flow increased from 155 CFM to 220 CFM for improved efficiency and power\u003c\/li\u003e\n\u003cli\u003e105-Pound Valve Springs: Enhances valve control to support higher boost and RPM\u003c\/li\u003e\n\u003cli\u003eFactory Intake Plenum Retained: Simplifies installation while maximizing airflow gains\u003c\/li\u003e\n\u003cli\u003eUpgraded Hardened Valve Seats: Extra-large, heat-resistant seats prevent failure and extend durability\u003c\/li\u003e\n\u003cli\u003ePrecision CNC Valve Job: Optimized for enhanced airflow and performance\u003c\/li\u003e\n\u003cli\u003eThoroughly Remanufactured \u0026amp; Pressure Tested: Crack-checked, resurfaced, and assembled to exceed OEM standards\u003c\/li\u003e\n\u003cli\u003eDirect Bolt-On Replacement: Designed for 2003-2007 Dodge Cummins 5.9L engines\u003c\/li\u003e\n\u003cli\u003eFully Assembled for Convenience: Includes new valve seals, soft plugs, and HD springs, ready for installation\u003c\/li\u003e\n\u003cli\u003eIncludes a custom-matched Fire Ring gasket for maximum head-to-block sealing under high boost\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 12 months parts and 12 months labor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufactured By:\u003c\/strong\u003e D\u0026amp;J Precision Machine\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eCore Charge\u003c\/h6\u003e\n\u003cp\u003eA refundable core charge applies to this product. The core deposit will be refunded once a complete, rebuildable core is returned within 30 days of receipt. Cores must be complete and serviceable per D\u0026amp;J Precision Machine requirements.\u003c\/p\u003e\n\u003ch6\u003eNotes\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eFreight charges apply; this item ships LTL.\u003c\/li\u003e\n\u003cli\u003eMade-to-order; lead times vary. Contact us for current ETA.\u003c\/li\u003e\n\u003cli\u003eNot for sale on California-licensed vehicles per BD Diesel \/ D\u0026amp;J Precision Machine policy.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"D\u0026J Precision Machine","offers":[{"title":"Default Title","offer_id":53922372419952,"sku":"DJPCH100202","price":5471.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2084\/8209\/files\/performance-cylinder-head-stage-1-dodge-ram-5-9l-cummins-2003-2007_be945e7e-c361-4894-9812-25a19b62eeed.jpg?v=1781714625","url":"https:\/\/www.dirtydieselcustom.ca\/products\/2003-2007-cummins-5-9l-stage-1-performance-cylinder-head-w-fire-ring-head-gasket-djpch100202","provider":"Dirty Diesel Customs","version":"1.0","type":"link"}