{"product_id":"tri-y-headers-for-69-72-gm-truck-265-400-sbc-w-o-egr-a-i-r-2wd-4-wd-d372y-b","title":"Tri-Y Headers for 69-72 GM Truck 265-400 SBC W\/O EGR\/A.I.R. 2WD\/4 WD D372Y-B","description":"\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHdr Chev Trk SBC 67-72 Blk\u003c\/p\u003e\u003cp\u003eDoug's is the pioneering force behind the popular TRI-Y design for cars and trucks. The unique, shortend, paired primary tubes increase mid-range torque without sacrificing top end power.  TRI-Y's are a great choice for daily drivers and heavy duty trucks looking to increase power from idle up to 4500 RPM while maintaining maximum fuel efficiency. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e3\/8\" thick machined flanges to prevent warping\u003c\/li\u003e\n\u003cli\u003eCNC mandrel bent tubes ensure accurate fit and better flow\u003c\/li\u003e\n\u003cli\u003eHeavy 16-guage tubing for longer life\u003c\/li\u003e\n\u003cli\u003eTubes are pre-polished to removed scratches before applying metallic ceramic or hi-temp black coating\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand: \u003c\/strong\u003eDoug's Headers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollector Attachment: \u003c\/strong\u003e3-Bolt Flange\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollector Diameter: \u003c\/strong\u003e2.5 IN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollector Port Diameter: \u003c\/strong\u003e2.5 IN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor: \u003c\/strong\u003eBlack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Head Port Shape: \u003c\/strong\u003eOval\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign: \u003c\/strong\u003eTri-Y\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Port: \u003c\/strong\u003eNo\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish: \u003c\/strong\u003eHi-Temp Black Coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange Thickness: \u003c\/strong\u003e0.375 IN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGasket Or Seal Included: \u003c\/strong\u003eYes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGaskets Included: \u003c\/strong\u003eYes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type: \u003c\/strong\u003ePerformance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader Material: \u003c\/strong\u003eSteel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader Style: \u003c\/strong\u003eTri-Y\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial: \u003c\/strong\u003eSteel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Hardware Included: \u003c\/strong\u003eYes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOxygen Sensor Port: \u003c\/strong\u003eNo\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort Shape: \u003c\/strong\u003eOval\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Tube Outside Diameter: \u003c\/strong\u003e1.625 IN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Tubing Diameter: \u003c\/strong\u003e1.625 IN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProp 65 (C, R or CR): \u003c\/strong\u003eCR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProp 65 Yes\/No: \u003c\/strong\u003eYes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSheen Level: \u003c\/strong\u003eMatte\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTitle: \u003c\/strong\u003eDoug's Tri Y Header 69-72 GM Truck 265-400 SBC W\/O EGR\/A.I.R. 2WD \u0026amp; 4 WD  1 5\/8-2\" Primary 2 1\/2\" Collector Black Hi Temp Coated D372Y-B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube Wall Thickness: \u003c\/strong\u003e16 GU\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number: \u003c\/strong\u003eD372Y-B\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e1967-1969 Chevrolet C10 Pickup 327 CID\u003c\/li\u003e\n\u003cli\u003e1967-1967 Chevrolet C10 Pickup 283 CID\u003c\/li\u003e\n\u003cli\u003e1968-1972 Chevrolet C10 Pickup 307 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 Chevrolet C10 Pickup 350 CID\u003c\/li\u003e\n\u003cli\u003e1967-1969 Chevrolet C20 Pickup 327 CID\u003c\/li\u003e\n\u003cli\u003e1967-1967 Chevrolet C20 Pickup 283 CID\u003c\/li\u003e\n\u003cli\u003e1968-1972 Chevrolet C20 Pickup 307 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 Chevrolet C20 Pickup 350 CID\u003c\/li\u003e\n\u003cli\u003e1967-1969 Chevrolet C30 Pickup 327 CID\u003c\/li\u003e\n\u003cli\u003e1967-1967 Chevrolet C30 Pickup 283 CID\u003c\/li\u003e\n\u003cli\u003e1968-1972 Chevrolet C30 Pickup 307 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 Chevrolet C30 Pickup 350 CID\u003c\/li\u003e\n\u003cli\u003e1967-1969 Chevrolet K10 Pickup 327 CID\u003c\/li\u003e\n\u003cli\u003e1967-1967 Chevrolet K10 Pickup 283 CID\u003c\/li\u003e\n\u003cli\u003e1968-1972 Chevrolet K10 Pickup 307 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 Chevrolet K10 Pickup 350 CID\u003c\/li\u003e\n\u003cli\u003e1967-1969 Chevrolet K20 Pickup 327 CID\u003c\/li\u003e\n\u003cli\u003e1967-1967 Chevrolet K20 Pickup 283 CID\u003c\/li\u003e\n\u003cli\u003e1968-1972 Chevrolet K20 Pickup 307 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 Chevrolet K20 Pickup 350 CID\u003c\/li\u003e\n\u003cli\u003e1968-1972 Chevrolet K30 Pickup 307 CID\u003c\/li\u003e\n\u003cli\u003e1968-1969 Chevrolet K30 Pickup 327 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 Chevrolet K30 Pickup 350 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 Chevrolet Blazer 350 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 Chevrolet Blazer 307 CID\u003c\/li\u003e\n\u003cli\u003e1967-1969 Chevrolet C10 Suburban 327 CID\u003c\/li\u003e\n\u003cli\u003e1967-1967 Chevrolet C10 Suburban 283 CID\u003c\/li\u003e\n\u003cli\u003e1968-1972 Chevrolet C10 Suburban 307 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 Chevrolet C10 Suburban 350 CID\u003c\/li\u003e\n\u003cli\u003e1967-1969 Chevrolet C20 Suburban 327 CID\u003c\/li\u003e\n\u003cli\u003e1967-1967 Chevrolet C20 Suburban 283 CID\u003c\/li\u003e\n\u003cli\u003e1968-1972 Chevrolet C20 Suburban 307 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 Chevrolet C20 Suburban 350 CID\u003c\/li\u003e\n\u003cli\u003e1967-1969 Chevrolet K10 Suburban 327 CID\u003c\/li\u003e\n\u003cli\u003e1967-1967 Chevrolet K10 Suburban 283 CID\u003c\/li\u003e\n\u003cli\u003e1968-1972 Chevrolet K10 Suburban 307 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 Chevrolet K10 Suburban 350 CID\u003c\/li\u003e\n\u003cli\u003e1967-1969 Chevrolet K20 Suburban 327 CID\u003c\/li\u003e\n\u003cli\u003e1967-1967 Chevrolet K20 Suburban 283 CID\u003c\/li\u003e\n\u003cli\u003e1968-1972 Chevrolet K20 Suburban 307 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 Chevrolet K20 Suburban 350 CID\u003c\/li\u003e\n\u003cli\u003e1967-1968 GMC C15\/C1500 Pickup 327 CID\u003c\/li\u003e\n\u003cli\u003e1967-1967 GMC C15\/C1500 Pickup 283 CID\u003c\/li\u003e\n\u003cli\u003e1968-1972 GMC C15\/C1500 Pickup 307 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 GMC C15\/C1500 Pickup 350 CID\u003c\/li\u003e\n\u003cli\u003e1967-1968 GMC C15\/C1500 Suburban 327 CID\u003c\/li\u003e\n\u003cli\u003e1967-1967 GMC C15\/C1500 Suburban 283 CID\u003c\/li\u003e\n\u003cli\u003e1968-1972 GMC C15\/C1500 Suburban 307 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 GMC C15\/C1500 Suburban 350 CID\u003c\/li\u003e\n\u003cli\u003e1967-1968 GMC C25\/C2500 Pickup 327 CID\u003c\/li\u003e\n\u003cli\u003e1967-1967 GMC C25\/C2500 Pickup 283 CID\u003c\/li\u003e\n\u003cli\u003e1968-1972 GMC C25\/C2500 Pickup 307 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 GMC C25\/C2500 Pickup 350 CID\u003c\/li\u003e\n\u003cli\u003e1967-1968 GMC C25\/C2500 Suburban 327 CID\u003c\/li\u003e\n\u003cli\u003e1967-1967 GMC C25\/C2500 Suburban 283 CID\u003c\/li\u003e\n\u003cli\u003e1968-1972 GMC C25\/C2500 Suburban 307 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 GMC C25\/C2500 Suburban 350 CID\u003c\/li\u003e\n\u003cli\u003e1967-1968 GMC C35\/C3500 Pickup 327 CID\u003c\/li\u003e\n\u003cli\u003e1967-1967 GMC C35\/C3500 Pickup 283 CID\u003c\/li\u003e\n\u003cli\u003e1968-1972 GMC C35\/C3500 Pickup 307 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 GMC C35\/C3500 Pickup 350 CID\u003c\/li\u003e\n\u003cli\u003e1967-1968 GMC K15\/K1500 Pickup 327 CID\u003c\/li\u003e\n\u003cli\u003e1967-1967 GMC K15\/K1500 Pickup 283 CID\u003c\/li\u003e\n\u003cli\u003e1968-1972 GMC K15\/K1500 Pickup 307 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 GMC K15\/K1500 Pickup 350 CID\u003c\/li\u003e\n\u003cli\u003e1967-1968 GMC K15\/K1500 Suburban 327 CID\u003c\/li\u003e\n\u003cli\u003e1967-1967 GMC K15\/K1500 Suburban 283 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 GMC K15\/K1500 Suburban 350 CID\u003c\/li\u003e\n\u003cli\u003e1970-1972 GMC K15\/K1500 Suburban 307 CID\u003c\/li\u003e\n\u003cli\u003e1967-1968 GMC K25\/K2500 Pickup 327 CID\u003c\/li\u003e\n\u003cli\u003e1967-1967 GMC K25\/K2500 Pickup 283 CID\u003c\/li\u003e\n\u003cli\u003e1968-1972 GMC K25\/K2500 Pickup 307 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 GMC K25\/K2500 Pickup 350 CID\u003c\/li\u003e\n\u003cli\u003e1967-1968 GMC K25\/K2500 Suburban 327 CID\u003c\/li\u003e\n\u003cli\u003e1968-1972 GMC K25\/K2500 Suburban 307 CID\u003c\/li\u003e\n\u003cli\u003e1968-1972 GMC K35\/K3500 Pickup 307 CID\u003c\/li\u003e\n\u003cli\u003e1968-1968 GMC K35\/K3500 Pickup 327 CID\u003c\/li\u003e\n\u003cli\u003e1969-1972 GMC K35\/K3500 Pickup 350 CID\u003c\/li\u003e\n\u003cli\u003e1970-1972 GMC Jimmy 350 CID\u003c\/li\u003e\n\u003cli\u003e1970-1972 GMC Jimmy 307 CID\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eEmissions:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eThis Product is LEGAL for Closed Course Competition use or Pre-Emissions Controlled Vehicles ONLY. It is Not Legal for use on any Emissions Controlled Vehicle for Street or Off Highway use.\u003c\/li\u003e \u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eInstructions:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/prod-da.s3.us-east-2.amazonaws.com\/BHKJ\/26298c91703a52b5387df41c1d809a43.pdf\" target=\"_blank\"\u003eClick here for installation instructions!\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFitment Notes: \u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFits most angle plug heads.\u003c\/li\u003e\n\u003cli\u003eFits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 and ZZ6 engines.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Doug's Headers","offers":[{"title":"Default Title","offer_id":54508695093461,"sku":"D372Y-B-BKLK","price":781.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2493\/0960\/files\/1aa56991bf6f24d3def270c13c7b3c4a.jpg?v=1786705117","url":"https:\/\/moderndaymuffler.com\/products\/tri-y-headers-for-69-72-gm-truck-265-400-sbc-w-o-egr-a-i-r-2wd-4-wd-d372y-b","provider":"Modern Day Muffler","version":"1.0","type":"link"}