{"product_id":"exhaust-header-131","title":"Long Tube Header Ceramic Coated 1966-1974 Chevy\/GMC 1\/2 \u0026 3\/4 \u0026 1-Ton 2WD \u0026 4WD 1967-1974 Blazer\/Jimmy 2WD 1966-1972 Blazer\/Jimmy K5\/Suburban 4WD 1973-1974 Blazer\/Jimmy K5\/Suburban 2WD \u0026 4WD 283-400 Tube Size 1.5 Inch Collector Size 3 Inch FlowTech","description":"\u003cp\u003e\u003cb\u003ePart #:\u003c\/b\u003e 31500FLT\u003c\/p\u003e\u003cp\u003eFlowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5\/16 inch flanges with sealing rings for a leak-free seal.All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat and corrosion resistant metallic ceramic thermal coating that increases exhaust velocity and reduces underhood temps for increased performance.Features and Benefits:Fuel Economy From The Engine Leak Test For Max Performance Ceramic Headers Rust And Corrosion Resistance Mandrel-Formed Power Plenum Leakproof O-Ringed Port Seals Include All Mounting Hardware Works with power steering and power brakesAssociated Notes: Requires Flowtech air conditioning bracket 10042FLT. May require clutch linkage modification. Does not fit with angle plug heads. Breaking in an engine with ceramic coated headers Will result in damage to the coating and will Void all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Flowtech recommends using cast iron exhaust manifolds or old headers to break in new engines to avoid coating damage. Please call Flowtech tech service at 270-781-9741 for additional information regarding ceramic exhaust products. The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Flowtech does not recommend the use of header wraps as this will void the warranty.Details:Air Injection Tubes: NoBolt size: 3\/8-16 x 3\/4Bolts Included: YesCARB (California) Compliant: NoCollector Attachment: 3-Bolt FlangeCollector Diameter: 3.00 InchCollector Port Diameter: 3.00 InchCollector Reducer Included: YesCollector Reducer Outlet Diameter: 2.50 InchColor: SilverCylinder Head Flange Thickness: 5\/16Design: Long TubeDrive: 2WD\/4WDEGT (Exhaust Gas Temperature) Port: NoEmission Code: 4Engine: Chevrolet Small Block Gen IFinish: Ceramic CoatedFlange Thickness: 0.3125 Inch, 5\/16Gasket Or Seal Included: YesGrade Type: PerformanceHeader Finish: Silver CeramicHeader Flange Thickness: 5\/16Header Series: Flowtech IIHeader Style: Long TubeMaterial: Mild SteelMounting Hardware Included: YesOxygen Sensor Port: NoPort Shape: OvalPrimary Tube Dia.: 1-1\/2 inchPrimary Tubing Diameter: 1-1\/2, 1.50 InchProduct Type: HeadersQuantity: Sold as a pairTube Material: Mild Steel\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFuel Economy From The Engine\u003c\/li\u003e\n\u003cli\u003eFuel Economy From The Engine\u003c\/li\u003e\n\u003cli\u003eLeak Test For Max Performance\u003c\/li\u003e\n\u003cli\u003eLeak Test For Max Performance\u003c\/li\u003e\n\u003cli\u003eCeramic Headers\u003c\/li\u003e\n\u003cli\u003eCeramic Headers\u003c\/li\u003e\n\u003cli\u003eRust And Corrosion Resistance\u003c\/li\u003e\n\u003cli\u003eRust And Corrosion Resistance\u003c\/li\u003e\n\u003cli\u003eMandrel-Formed Power Plenum\u003c\/li\u003e\n\u003cli\u003eMandrel-Formed Power Plenum\u003c\/li\u003e\n\u003cli\u003eLeakproof O-Ringed Port Seals\u003c\/li\u003e\n\u003cli\u003eLeak-proof O-Ringed Port Seals\u003c\/li\u003e\n\u003cli\u003eInclude All Mounting Hardware\u003c\/li\u003e\n\u003cli\u003eInclude All Mounting Hardware\u003c\/li\u003e\n\u003cli\u003eWorks with power steering and power brakes\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e1966-1974 Chevy\/GMC 1\/2 \u0026amp; 3\/4 \u0026amp; 1-Ton 2WD \u0026amp; 4WD, 1967-1974 Blazer\/Jimmy 2WD, 1966-1972 Blazer\/Jimmy K5\/Suburban 4WD, 1973-1974 Blazer\/Jimmy K5\/Suburban 2WD \u0026amp; 4WD: 283-400, Tube Size 1.5\", Collector Size 3\"\u003c\/p\u003e\u003cp\u003eThis product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.\u003c\/p\u003e","brand":"Flowtech","offers":[{"title":"Default Title","offer_id":51827872497976,"sku":"F00M 31500FLT","price":511.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/580255159.webp?v=1778806477","url":"https:\/\/store.motormia.co\/products\/exhaust-header-131","provider":"MOTORMIA","version":"1.0","type":"link"}