{"id":10640,"date":"2023-06-04T11:31:40","date_gmt":"2023-06-04T19:31:40","guid":{"rendered":"https:\/\/sandersonheaders.com\/?post_type=product&#038;p=10640"},"modified":"2025-06-13T13:42:56","modified_gmt":"2025-06-13T21:42:56","slug":"ff4-header-set-ford-351w","status":"publish","type":"product","link":"https:\/\/sandersonheaders.com\/product\/ff4-header-set-ford-351w\/","title":{"rendered":"FF4 Header Set, Ford 351W"},"content":{"rendered":"<p>The FF4 header fits a variety of street rods, passenger cars, and pickups using small block Ford 351W engines. This is the most compact Windsor header design on the market and solves clearance problems in street rods, kit cars, and classic trucks. The FF4 is a popular Ford 351W header for aftermarket chassis applications, including Total Cost Involved (TCI), Heidts, Chassisworks, and many others. The FF4 clears most steering and chassis setups without a cross member directly below the center of the engine.<\/p>\n<p><strong>NOTES:<\/strong><\/p>\n<ul>\n<li>The FF4 is not compatible with GT40P cylinder heads.<\/li>\n<li>Not compatible with BluePrint engines.<\/li>\n<li>For 221-302 (standard deck) applications, order part #<a href=\"https:\/\/sandersonheaders.com\/product\/ff5-header-set-ford-221-302\/\">FF5<\/a><\/li>\n<\/ul>\n<p>Includes all hardware necessary for installation.<\/p>\n<p><strong>SPECIFICATIONS:<\/strong><\/p>\n<p>Engine: Small Block Ford 351w<br \/>\nPrimary Tube Diameter: 1\u00bd&#8221;<br \/>\nCollector Diameter: 2\u00bd&#8221;<\/p>\n<p><strong>FEATURES:<\/strong><\/p>\n<ul>\n<li>16-Gauge Primary and Collector Tube Thickness<\/li>\n<li>3\/8&#8243; Thick Flange<\/li>\n<li>Patented Flange Design Requires NO Gaskets<\/li>\n<li>Tightest Fitting Header Available Anywhere!<\/li>\n<li>Made in the USA<\/li>\n<\/ul>\n<p><strong>INCLUDES:<\/strong><\/p>\n<ul>\n<li>Header Bolt Set<\/li>\n<li>Collector Reducer Set<\/li>\n<\/ul>\n<p><strong>FINISH:<\/strong><\/p>\n<p>Our <strong>Ceramic Coating<\/strong> is recommended for every vehicle application and is the default finish selection choice above. To meet high standards of quality, We apply a multi-layer inside and outside aluminized ceramic coating in-house and then polish the coating to a high luster. This aerospace and military-grade technology adds excellent protection to your headers while offering the benefit of thermal control in your engine bay. It also improves cylinder scavenging of exhaust gases and increases the longevity of your header investment.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The FF4 header set fits small block Ford 351W engines in a variety of street rods, cars, and pickups, including aftermarket chassis applications.<\/p>\n","protected":false},"featured_media":525,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[87,273,177,175,280,176],"product_tag":[276,274],"class_list":{"0":"post-10640","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-street-rod","7":"product_cat-351w","8":"product_cat-chassisworks","9":"product_cat-heidts","10":"product_cat-pickup-ford","11":"product_cat-tci","12":"product_tag-351w","13":"product_tag-small-block-ford","15":"first","16":"instock","17":"featured","18":"taxable","19":"shipping-taxable","20":"purchasable","21":"product-type-variable","22":"has-default-attributes"},"_links":{"self":[{"href":"https:\/\/sandersonheaders.com\/wp-json\/wp\/v2\/product\/10640","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sandersonheaders.com\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/sandersonheaders.com\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/sandersonheaders.com\/wp-json\/wp\/v2\/comments?post=10640"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sandersonheaders.com\/wp-json\/wp\/v2\/media\/525"}],"wp:attachment":[{"href":"https:\/\/sandersonheaders.com\/wp-json\/wp\/v2\/media?parent=10640"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/sandersonheaders.com\/wp-json\/wp\/v2\/product_brand?post=10640"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/sandersonheaders.com\/wp-json\/wp\/v2\/product_cat?post=10640"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/sandersonheaders.com\/wp-json\/wp\/v2\/product_tag?post=10640"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}