{"product_id":"sbc-1-5-8-mid-length-headers-universal-5-0-5-7","title":"Speed Engineering SBC 1 5\/8\" Mid-Length Headers | Universal (5.0 5.7)","description":"\u003cp\u003e\u003cstrong\u003eSBC 1 5\/8\" Mid-Length Headers | Universal (5.0 5.7)\u003c\/strong\u003e — Manufacturer part number: 25-1230.\u003c\/p\u003e\u003ch2\u003e\u003cspan style=\"color: #ff0000;\"\u003e(IN STOCK)\u003cbr\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cp\u003eSpeed Engineering SBC mid-length headers are made out of 304 stainless steel and offer great quality, performance, and affordability. Our SBC mid-length headers are mandrel bent, tig welded, and feature natural stainless steel construction. All of our SBC mid-length headers have been dyno proven. We stand behind our SBC mid-length headers in saying you will not find a better fitting, quality built, budget header for your vehicle.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eMandrel Bent Tubing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e1 5\/8\" Primaries\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e1 3\/4\" x 1 1\/2\" Oval Ports\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eMid-Length Header Design\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eSBC Headers\u003c\/em\u003e\u003cem\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e3\" Collector\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eV8 Engines Only\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eMerge Spike\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eSBC 5.0\/305 \u0026amp; 5.7\/350 Engines\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eCNC Machined Flanges \u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eNatural 304 Stainless Steel\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eStandard Graphite Manifold Gaskets\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e17 3\/8\" Center to Center Outer Bolt Holes\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e10x1.5x25 Zinc Bolts\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eVehicles:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003e1970-1981 F-Body\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003e1968-1977 A-Body\u003c\/em\u003e\u003cem\u003e\u003cbr\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e1975-1979 X-Body\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e1982-1987 G-Body\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e1971-1993 B-Body\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eNote: \u003c\/strong\u003eWill not work on LT1 engines. \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Some transmissions linkages\/Z bars might need modifications or relocations for fitment.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cem\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003e(Warning) \u003c\/strong\u003e\u003c\/span\u003eThis is a RACE ONLY product manufactured and sold for installation on vehicles to be used solely for competition purposes. Once this part is installed, the vehicle may never be used, or registered or licensed for use, on a public road or highway. If you install this part on your vehicle and use the vehicle on a public road or highway, you will violate the Clean Air Act 203(a)(3), 42 U.S.C, 7522(a)(3) and may be subject to personal civil or criminal liability.\u003c\/span\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cem\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0577\/3885\/4576\/files\/Sema_Garage_3.jpg?v=1752617178\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003ch3\u003eFitment and ordering\u003c\/h3\u003e\u003cp\u003eConfirm the vehicle, engine, dimensions and application restrictions listed above before ordering. Speed Engineering parts are designed to work with Speed Engineering components; mixing brands may require modifications.\u003c\/p\u003e\u003cp\u003eConfiguration choices: SBC Manifold Gaskets. Confirm the required configuration with Speedzone before ordering if a selector is not shown.\u003c\/p\u003e\u003ch3\u003eAvailable upgrades and related Speed Engineering parts\u003c\/h3\u003e\u003cp\u003eThese are separate purchases. Check quantities and the kit’s included parts before adding an upgrade. Each linked product shows your current store price and its own fitment.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en-jp\/products\/sbc-exhaust-manifold-gaskets-sbc-5-0-5-7\"\u003eSBC Multi-Layer Steel Gaskets\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-jp\/products\/3-v-band-clamp-flanges-stainless-steel-m2\"\u003e3\" Weldable V Band Flanges \u0026amp; Clamp\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003csmall\u003eManufacturer specifications and availability checked October 4, 2026. Availability refers to the manufacturer and can change; it does not indicate stock held at Speedzone.\u003c\/small\u003e\u003c\/p\u003e\n\u003cp class=\"speed-engineering-return-notice\"\u003e\u003csmall style=\"font-size: 0.85em; line-height: 1.5;\"\u003e\u003cstrong\u003eReturns:\u003c\/strong\u003e All Speed Engineering product sales are final. No returns are accepted on Speed Engineering products. Please verify fitment before ordering. See our \u003ca href=\"\/en-jp\/policies\/refund-policy\"\u003eReturn Policy\u003c\/a\u003e for additional terms. This does not limit any consumer rights that cannot be waived under applicable law.\u003c\/small\u003e\u003c\/p\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":46248956002389,"sku":"25-1230","price":38000.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0947\/5040\/files\/25-1230SBC15-8inchMid-LengthHeadersUniversal_5.05.7.jpg?v=1790789543","url":"https:\/\/speedzone-web.com\/en-jp\/products\/sbc-1-5-8-mid-length-headers-universal-5-0-5-7","provider":"Speedzone Performance LLC","version":"1.0","type":"link"}