{"title":"ProMaxx Performance","description":null,"products":[{"product_id":"promaxx-bare-replacement-cylinder-head","title":"ProMaxx Bare Replacement Cylinder Head","description":"\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003e\u003cfont color=\"#000000\"\u003eThe ProMaxx Bare Replacement Cylinder Head is a high quality replacement for your 2003-2005 Ford 6.0L Powerstroke. Built with thicker castings in crack prone areas, these heads undergo extensive testing and quality control to ensure that you receive the best product possible.\u003c\/font\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cfont color=\"#000000\"\u003e\u003cbr\u003e\u003c\/font\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cfont color=\"#000000\"\u003eProMaxx performs the following tests and procedures: All fuel rails are drilled and checked, all heads are push rod clearanced, glow plugs and injectors are test fit, all recession depths are checked, all heads are pressure tested, and all holes are tapped including glow plug threads.\u003c\/font\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cfont color=\"#000000\"\u003e\u003cbr\u003e\u003c\/font\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cfont color=\"#000000\"\u003eSold as a \"bare\" casting without any valves, seals or springs this head is a perfect start for those that want to upgrade their valvetrain. These brand new castings are sold without a core charge.\u003c\/font\u003e\u003c\/p\u003e\n\n\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cul\u003e\n\u003cli\u003eNew Casting\u003c\/li\u003e\n\u003cli\u003eImproved Casting In \"Problem Areas\"\u003c\/li\u003e\n\u003cli\u003eNo Core Charge!\u003c\/li\u003e\n\u003cli\u003eSold Individually\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/b\u003e\u003c\/p\u003e","brand":"ProMaxx Performance","offers":[{"title":"Default Title","offer_id":45073485955229,"sku":"FOR850NB","price":789.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/2504\/1821\/files\/F198666745.jpg?v=1713405024"},{"product_id":"promaxx-bare-replacement-cylinder-head-for851nb","title":"ProMaxx Bare Replacement Cylinder Head","description":"\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003e\u003cfont color=\"#000000\"\u003eThe ProMaxx Bare Replacement Cylinder Head is a high quality replacement for your 2006-2007 Ford 6.0L Powerstroke. Built with thicker castings in crack prone areas, these heads undergo extensive testing and quality control to ensure that you receive the best product possible.\u003c\/font\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cfont color=\"#000000\"\u003e\u003cbr\u003e\u003c\/font\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cfont color=\"#000000\"\u003eProMaxx performs the following tests and procedures: All fuel rails are drilled and checked, all heads are push rod clearanced, glow plugs and injectors are test fit, all recession depths are checked, all heads are pressure tested, and all holes are tapped including glow plug threads.\u003c\/font\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cfont color=\"#000000\"\u003e\u003cbr\u003e\u003c\/font\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cfont color=\"#000000\"\u003eSold as a \"bare\" casting without any valves, seals or springs this head is a perfect start for those that want to upgrade their valvetrain. These brand new castings are sold without a core charge.\u003c\/font\u003e\u003c\/p\u003e\n\n\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cul\u003e\n\u003cli\u003eNew Casting\u003c\/li\u003e\n\u003cli\u003eImproved Casting In \"Problem Areas\"\u003c\/li\u003e\n\u003cli\u003eNo Core Charge!\u003c\/li\u003e\n\u003cli\u003eSold Individually\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/b\u003e\u003c\/p\u003e","brand":"ProMaxx Performance","offers":[{"title":"Default Title","offer_id":45073486348445,"sku":"FOR851NB","price":789.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/2504\/1821\/files\/F198666747.jpg?v=1713405026"},{"product_id":"promaxx-replacement-cylinder-head-che855n","title":"ProMaxx Replacement Cylinder Head","description":"\u003cp\u003eProMaxx Performance Cylinder Heads are designed as replacement cylinder heads with thicker castings in crack prone areas. Sold as a complete cylinder head with valves, valve seals, springs, retainers and locks, these new castings are sold without a core charge and come ready to install. Sold individually. \u003c\/p\u003e\n\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNew Casting \u003c\/li\u003e\n\u003cli\u003eImproved Casting In \"Problem Areas\" \u003c\/li\u003e\n\u003cli\u003eIncludes Valve Seals, Springs\u003c\/li\u003e\n\u003cli\u003eNo Core Charge! \u003c\/li\u003e\n\u003cli\u003eSold Individually \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cb\u003eNote:\u003c\/b\u003e The standard heads will typically use a 1-piece intake and are normally found in truck applications. Please confirm what is in your vehicle before ordering.\u003c\/p\u003e","brand":"ProMaxx Performance","offers":[{"title":"Default Title","offer_id":45073488314525,"sku":"CHE855N","price":538.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/2504\/1821\/files\/F198683824.jpg?v=1713405032"},{"product_id":"promaxx-replacement-cylinder-head-chr618n","title":"ProMaxx Replacement Cylinder Head","description":"\u003cp\u003eProMaxx Performance Cylinder Heads are designed as replacement cylinder heads with thicker castings in crack prone areas. 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Sold as a complete cylinder head with valves, valve seals, springs, retainers and locks, these new castings are sold without a core charge and come ready to install.\u003c\/p\u003e\n\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNew Casting \u003c\/li\u003e\n\u003cli\u003eImproved Casting In \"Problem Areas\" \u003c\/li\u003e\n\u003cli\u003eNo Core Charge!\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ProMaxx Performance","offers":[{"title":"Default Title","offer_id":45073490313373,"sku":"CHR620N","price":1841.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/2504\/1821\/files\/F198665387.jpg?v=1713405036"},{"product_id":"promaxx-replacement-cylinder-head-chr621n","title":"ProMaxx Replacement Cylinder Head","description":"\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eProMaxx Performance Cylinder Heads are designed as replacement cylinder heads with thicker castings in crack prone areas. Sold as a complete cylinder head with valves, valve seals, springs, retainers and locks, these new castings are sold without a core charge and come ready to install. \u003c\/p\u003e\n\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cfont color=\"#000000\"\u003eNew Casting \u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont color=\"#000000\"\u003eImproved Casting In \"Problem Areas\" \u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont color=\"#000000\"\u003eNo Core Charge! \u003c\/font\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ProMaxx Performance","offers":[{"title":"Default Title","offer_id":45073491624093,"sku":"CHR621N","price":1841.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/2504\/1821\/files\/F198665388.jpg?v=1713405038"},{"product_id":"promaxx-replacement-cylinder-head-for850n","title":"ProMaxx Replacement Cylinder Head","description":"\u003cp\u003eThe ProMaxx Performance Cylinder Heads are high quality replacements for your 2003-2005 Ford 6.0L Powerstroke. 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