{"product_id":"hdr-66-74-11500flt-w-air-fitng","title":"Long Tube Header W\/Air Fittings Painted 66-74 Chevy\/GMC 1\/2\/3\/4 1-Ton 67-74 Blazer\/Jimmy 283-400 Tube Size 1.5 Inch Collector Size 3 Inch W\/ Air Tubes FlowTech","description":"\u003cp\u003e\u003cb\u003ePart #:\u003c\/b\u003e 11500SFLT\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 resistant black paint for a stealthy appearance.Features and Benefits:Fuel Economy From The Engine Leak Test For Max Performance Mandrel-Formed Power Plenum Leakproof O-Ringed Port Seals Include All Mounting Hardware Construced of .049 cold roll flash mild steel tubing Precision engineered for fit, performance and economy Works with factory power steering and power brakes With Air TubesAssociated 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 coated 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: YesBolt size: 3\/8-16 x 3\/4Bolts Included: YesCARB (California) Compliant: NoCatalytic Converter Quantity: 0Collector Attachment: 3-Bolt FlangeCollector Diameter: 3.00 InchCollector Port Diameter: 3.00 InchCollector Reducer Included: YesCollector Reducer Outlet Diameter: 2.50 InchColor: BlackCylinder Head Flange Thickness: 5\/16Design: Long TubeDrive: 2WD, 4WDEGT (Exhaust Gas Temperature) Port: NoEGT Port: NoEmission Code: 4Engine: Chevrolet Small Block Gen IFinish: PaintedFlange Thickness: 0.3125 Inch, 5\/16Gasket Or Seal Included: YesGrade Type: PerformanceHeader Finish: Black PaintHeader Series: Flowtech IHeader Style: Long TubeMaterial: Mild SteelMounting Hardware Included: YesOxygen Sensor Port: NoPort Shape: OvalPrimary Tubing Diameter: 1-1\/2, 1.50 InchProduct Type: HeadersQuantity: Sold as a PairSheen Level: SatinTube Material: Mild SteelTube Wall Thickness: 18 Gauge\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\u003eLeak Test For Max Performance\u003c\/li\u003e\n\u003cli\u003eMandrel-Formed Power Plenum\u003c\/li\u003e\n\u003cli\u003eLeakproof O-Ringed Port Seals\u003c\/li\u003e\n\u003cli\u003eInclude All Mounting Hardware\u003c\/li\u003e\n\u003cli\u003eConstruced of .049 cold roll flash mild steel tubing\u003c\/li\u003e\n\u003cli\u003ePrecision engineered for fit, performance and economy\u003c\/li\u003e\n\u003cli\u003eWorks with factory power steering and power brakes\u003c\/li\u003e\n\u003cli\u003eWith Air Tubes\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\" w\/ Air Tubes\u003c\/p\u003e","brand":"Flowtech","offers":[{"title":"Default Title","offer_id":51828533788984,"sku":"F00M 11500SFLT","price":359.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/store.motormia.co\/products\/hdr-66-74-11500flt-w-air-fitng","provider":"MOTORMIA","version":"1.0","type":"link"}