{"product_id":"industrial-injection-pdm-67sth-cummins-6-7l-ported-polished-cylinder-head-w-fire-ring-grooves","title":"Industrial Injection PDM-67STH - Cummins 6.7L Ported \u0026 Polished Cylinder Head w\/ Fire Ring Grooves","description":"\u003cp\u003e\u003cem\u003eCummins 6.7L Ported \u0026amp; Polished Cylinder Head w\/ Fire Ring Grooves\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eHeads 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 36mm Oversized Stainless Steel Valves\u003c\/li\u003e\n\u003cli\u003eHigh Strength Alloy Valve Guides\u003c\/li\u003e\n\u003cli\u003eHigh Temp Valve Seats\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\u003e95 Lbs Valve Springs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Industrial Injection","offers":[{"title":"Default Title","offer_id":45446418202668,"sku":"PDM-67STH","price":4603.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/6007\/6332\/files\/246602_001.jpg?v=1775862406","url":"https:\/\/carpartglobal.com\/products\/industrial-injection-pdm-67sth-cummins-6-7l-ported-polished-cylinder-head-w-fire-ring-grooves","provider":"Car Part Global","version":"1.0","type":"link"}