{"product_id":"fleece-6-7l-freedom-series-cummins-cylinder-head-with-fire-rings","title":"Fleece 6.7L Freedom Series Cummins Cylinder Head With Fire Rings 07.5-18","description":"\u003cdiv class=\"product attribute description\"\u003e\n\u003cdiv class=\"value\"\u003e\n\u003cp\u003e\u003cspan\u003eIntroducing our Freedom Series Cummins Performance cylinder heads. Each cylinder head is manufactured in our state-of-the-art cylinder head machine shop and guaranteed to meet or exceed factory specifications. All heads are inspected, pressure checked, decked, painted, and ready for installation. Plus, the 11 screw in freeze plugs ensure you’ll never worry about a coolant leak under the valve cover again. Whether you are sled pulling, drag racing, or just looking for extra power when towing, o\u003c\/span\u003e\u003cspan\u003eur Performance heads will get you the power you need and include larger Manley valves and are rated up to 1,100hp!  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFire ring the cylinder head (All in the head)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e11 screw in freeze plugs (eliminates coolant leaks)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHardened, oversized press in valve seats\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNew valve guide liners\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLarger 1.380\" stainless steel alloy intake valves\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLarger 1.380\" inconel alloy exhaust valves\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e105 valve springs and\u003c\/span\u003e\u003cspan\u003e steel retainers\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003e** Fire ring gasket not included.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e** Core and crate return required - all paperwork \u0026amp; instructions for return included with the new cylinder head.  Read our core charge policy \u003ca title=\"Core Charge Policy\" href=\"https:\/\/www.fleeceperformance.com\/media\/wysiwyg\/FPE-2018-27_Fleece_Performance_Core_Return.pdf\" rel=\"noopener\" target=\"_blank\"\u003ehere\u003c\/a\u003e. You are responsible for all return shipping costs of the core. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e*** FOLLOW ALL \u003ca href=\"https:\/\/fleeceperformance.com\/media\/wysiwyg\/FPE-2019-30_Cummins_Cylinder_Head_Install_andValveLash.pdf\" rel=\"noopener\" target=\"_blank\"\u003eINSTALLATION INSTRUCTIONS\u003c\/a\u003e; Valve lash required. Back off adjusters on rocker arms or damage will occur to the cylinder head. Verify flatness of the block prior to installation. \u003c\/span\u003e\u003cspan\u003eInstallation of fire ring heads should only be performed by an experienced technician.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e**** Will not work with other aftermarket head gaskets - use of Fleece Performance fire-ring head gasket kit is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e***** When utilizing aftermarket head studs, lower rocker box cover modifications are required.  Reference \u003ca href=\"https:\/\/fleeceperformance.com\/media\/wysiwyg\/247-4202.pdf\" rel=\"noopener\" target=\"_blank\"\u003eARP INSTALLATION METHOD INSTRUCTIONS\u003c\/a\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e****** ALL CUMMINS CYLINDER HEADS SHIP GROUND FREIGHT. BASED ON YOUR LOCATION THE SHIPPING TIME IS TYPICALLY 3-5 DAYS BUSINESS DAYS.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"warranty\"\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.fleeceperformance.com\/media\/wysiwyg\/FleecePerformanceEngineering_Warranty.pdf\" target=\"_blank\"\u003e1 Year Limited Parts Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"FLEECE","offers":[{"title":"Default Title","offer_id":52480580813080,"sku":"FPE-61-10008","price":3750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0996\/7511\/1704\/files\/fpe-61-10008-f1.png?v=1785947809","url":"https:\/\/dirtydiamondperformance.com\/products\/fleece-6-7l-freedom-series-cummins-cylinder-head-with-fire-rings","provider":"Dirty Diamond Performance","version":"1.0","type":"link"}