{"product_id":"industrial-injection-pdm-12vsth-cummins-5-9l-12-valve-ported-polished-cylinder-head-w-fire-ring-grooves","title":"Industrial Injection PDM-12VSTH - Cummins 5.9L 12 Valve Ported \u0026 Polished Cylinder Head w\/ Fire Ring Grooves","description":"\u003cp\u003e\u003cem\u003eCummins 5.9L 12 Valve Ported \u0026amp; Polished Cylinder Head w\/ Fire Ring Grooves\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe Industrial Injection 5.9L 12v Cummins Port \u0026amp; Polished Heads are designed for the daily driver \/ weekend warrior in mind. Fully CNC ported heads complete and ready to bolt on.Note: Fire Ring Head Gasket sold separately.The Build Process:Heads are first jet washed in a high pressure spray cabinet to remove oil and dirt, then glass beaded to remove carbon. Next they are checked by magnafluxing, (cast iron only) or pressure testing. They are visually inspected for defects that would make them unusable. Valve guides and seats are removed as needed for porting.Port development is accomplished using a SuperFlow 600 flow bench with a computer recording all flow measurements.Many things are considered when designing a cylinder head Port\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCNC Ported Cylinder Head\u003c\/li\u003e\n\u003cli\u003eNew Stainless Steel Valves\u003c\/li\u003e\n\u003cli\u003eHigh Strength Alloy Valve Guides\u003c\/li\u003e\n\u003cli\u003eDrilled \u0026amp; Tapped Coolant Freeze Plugs In Head\u003c\/li\u003e\n\u003cli\u003eFire Ringed Head\u003c\/li\u003e\n\u003cli\u003eIndustrial Injection 150lb Valve Springs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Industrial Injection","offers":[{"title":"Default Title","offer_id":45446419939372,"sku":"PDM-12VSTH","price":3725.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/6007\/6332\/files\/24G602_001-r.jpg?v=1778045752","url":"https:\/\/carpartglobal.com\/products\/industrial-injection-pdm-12vsth-cummins-5-9l-12-valve-ported-polished-cylinder-head-w-fire-ring-grooves","provider":"Car Part Global","version":"1.0","type":"link"}