{"product_id":"hedman-hedders-h-d-silver-long-tube-headers-for-1984-91-corvette-with-283-400-63448","title":"Hedman Hedders H.D. Silver Long-Tube Headers 63448 fits 1988 Chevrolet Corvette 35th Anniversary Edition with 283-400","description":"\u003cp\u003eHedman Hedders has been manufacturing quality headers in the USA since 1954, and they've been manufacturing Headers for Chevy Corvettes for decades. Each set uses mild steel, smooth flowing, CNC mandrel bent tubes, that are hand-welded to ensure each pair is identical to the next. Hedman's unique, gasketless ball and socket collector design allows your Small Block Chevy exhaust system to bolt up, even if it is not perfectly aligned with the header collectors.\u003c\/p\u003e\u003cp\u003eThis set is part of Hedman's BLACK ELITE line of headers. Hedman BLACK ELITE headers have a heavy-duty design that uses stout 3\/8\" flanges, and thicker 14 gauge primary tubes. The heavier-duty construction of HEDMAN BLACK ELITE Hedders makes them ideal for high-performance engines and tow vehicles, both of which produce higher exhaust temperatures.\u003c\/p\u003e\u003cp\u003eBLACK ELITE models have a SATIN-BLACK ceramic finish that can withstand temperatures up to 1400 degrees F. The coating looks great, and keeps more heat in the tubes. This results in faster exhaust speeds for improved exhaust scavenging, and reduced underhood temperatures.\u003c\/p\u003e\u003cp\u003eThese LONG-TUBE headers fit 1984-1991 Chevy Corvettes powered by a SB Chevy (Gen 1) engine. The smooth 1-5\/8 in tube design provides ample exhaust flow to let your Vette's 283-400 SB Chevy engine breathe easy, and produce maximum horsepower and torque.\u003c\/p\u003e\u003cp\u003eEach set includes a pair of gaskets, header flange bolts and collector bolts. No collector gasket is needed.\u003c\/p\u003e\u003cp\u003eHedman Hedders is so confident in the quality of its headers that these headers are factory backed by a Limited Lifetime Warranty. The ceramic-metallic coating is covered by a 5-year factory warranty, in addition to Hedman's standard lifetime header warranty.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003eSpecifications:\u003cbr\u003e\u003c\/p\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_DEF\u003c\/td\u003e\n\u003ctd\u003e[B@12de53d4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_DES\u003c\/td\u003e\n\u003ctd\u003e[B@7ba05fe4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_EXT\u003c\/td\u003e\n\u003ctd\u003e[B@52efb6cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003e[B@3ae55942\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003e[B@5a45fd39\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003e[B@2363d6ea\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003e[B@c955d9c\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003e[B@1c2a2a05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003e[B@69f3b08c\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_INV\u003c\/td\u003e\n\u003ctd\u003e[B@541aefde\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_MKT\u003c\/td\u003e\n\u003ctd\u003e[B@7245217c\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_SHO\u003c\/td\u003e\n\u003ctd\u003e[B@3f725733\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTitle\u003c\/td\u003e\n\u003ctd\u003eHEDMAN HEDDERS ELITE 84-91 CORVETTE 283-400- BLACK MAXX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Diameter\u003c\/td\u003e\n\u003ctd\u003e1-5\/8 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReducers Included\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ewith EGR\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeld-Up\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTuned\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBolts\/Studs Included\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalytic Converter(s) Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollector Bolts Included\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrossover Pipe Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGasket Or Seal Included\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader Fasteners Included\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Hardware Included\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Mounts Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Hardware Included\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eY-Pipe Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVariations\u003c\/td\u003e\n\u003ctd\u003e68446, 68448\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003eSold as a pair.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Tube Gauge\u003c\/td\u003e\n\u003ctd\u003e14g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Tube Diameter (in)\u003c\/td\u003e\n\u003ctd\u003e1.625 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Contents\u003c\/td\u003e\n\u003ctd\u003eHeaders, ball and socket reducers (exhaust adapters), gaskets, mounting hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader Material\u003c\/td\u003e\n\u003ctd\u003eMild Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader Finish\u003c\/td\u003e\n\u003ctd\u003eBLACK MAXX Satin Black Ceramic-Metallic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCylinder Head Port Shape\u003c\/td\u003e\n\u003ctd\u003eOval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCylinder Head\u003c\/td\u003e\n\u003ctd\u003eStock Profile Heads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader Construction\u003c\/td\u003e\n\u003ctd\u003eMILD STEEL- ELITE Heavy-Duty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement Gasket\u003c\/td\u003e\n\u003ctd\u003e27520\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement Head Flange Gasket\u003c\/td\u003e\n\u003ctd\u003e27520\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalifornia Proposition 65\u003c\/td\u003e\n\u003ctd\u003eWARNING: Cancer \u0026amp; Reproductive Harm. For more info visit www.P65Warnings.ca.gov\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ewith A.I.R. System\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Size\u003c\/td\u003e\n\u003ctd\u003e1-5\/8 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Style\u003c\/td\u003e\n\u003ctd\u003eLong Tubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir Conditioning\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutomatic Transmission - Column\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutomatic Transmission - Floor\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManual Transmission - Column\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManual Transmission - Floor\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Material Thickness\u003c\/td\u003e\n\u003ctd\u003e14g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eMild Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Design\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Length\u003c\/td\u003e\n\u003ctd\u003eLong Tubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Thickness\u003c\/td\u003e\n\u003ctd\u003e0.375 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExhaust System Dia\u003c\/td\u003e\n\u003ctd\u003e2-1\/2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReducer Outlet Size\u003c\/td\u003e\n\u003ctd\u003e2-1\/2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollector Attachment\u003c\/td\u003e\n\u003ctd\u003e3 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollector Diameter\u003c\/td\u003e\n\u003ctd\u003e3 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollector Size\u003c\/td\u003e\n\u003ctd\u003e3 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNotes\u003c\/td\u003e\n\u003ctd\u003e84-91 Chevrolet Corvette 283-400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollector Style\u003c\/td\u003e\n\u003ctd\u003eBALL and SOCKET Style (Gasketless)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eBLACK MAXX Satin Black Ceramic-Metallic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish Type\u003c\/td\u003e\n\u003ctd\u003eBLACK MAXX- Black Ceramic-Metallic Coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContents\u003c\/td\u003e\n\u003ctd\u003eHeader(s), new bolts, gasket(s) to head, reducer(s) and hardware, instructions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader Style\u003c\/td\u003e\n\u003ctd\u003eLong Tube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE.O. #\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey Feature\u003c\/td\u003e\n\u003ctd\u003eNon-EGR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmissions Notes\u003c\/td\u003e\n\u003ctd\u003eNot Legal For Street Use on '75-Later Model Years! Legal for off-road use only.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort Shape\u003c\/td\u003e\n\u003ctd\u003eOval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader Port Shape\u003c\/td\u003e\n\u003ctd\u003eOval Port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Style\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Steering\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c!-- CONVERMAX_FITMENT_TABLE_START --\u003e\u003cdiv class=\"convermax-fitment-table\" style=\"margin:1.25em 0;overflow-x:auto;\"\u003e\n\u003cp style=\"margin:0 0 .5em 0;\"\u003eThis Part Fits:\u003c\/p\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;table-layout:fixed;\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 12px;font-weight:600;border-bottom:1px solid #ddd;white-space:normal;word-break:break-word;\"\u003eYear\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px 12px;font-weight:600;border-bottom:1px solid #ddd;white-space:normal;word-break:break-word;\"\u003eMake\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px 12px;font-weight:600;border-bottom:1px solid #ddd;white-space:normal;word-break:break-word;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px 12px;font-weight:600;border-bottom:1px solid #ddd;white-space:normal;word-break:break-word;\"\u003eSubmodel\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px 12px;font-weight:600;border-bottom:1px solid #ddd;white-space:normal;word-break:break-word;\"\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:left;padding:8px 12px;border-bottom:1px solid #eee;vertical-align:top;white-space:normal;word-break:break-word;overflow-wrap:anywhere;\"\u003e1988\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:8px 12px;border-bottom:1px solid #eee;vertical-align:top;white-space:normal;word-break:break-word;overflow-wrap:anywhere;\"\u003eChevrolet\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:8px 12px;border-bottom:1px solid #eee;vertical-align:top;white-space:normal;word-break:break-word;overflow-wrap:anywhere;\"\u003eCorvette\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:8px 12px;border-bottom:1px solid #eee;vertical-align:top;white-space:normal;word-break:break-word;overflow-wrap:anywhere;\"\u003e35th Anniversary Edition Hatchback 2-Door\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:8px 12px;border-bottom:1px solid #eee;vertical-align:top;white-space:normal;word-break:break-word;overflow-wrap:anywhere;\"\u003e5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:left;padding:8px 12px;border-bottom:1px solid #eee;vertical-align:top;white-space:normal;word-break:break-word;overflow-wrap:anywhere;\"\u003e1989-1991\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:8px 12px;border-bottom:1px solid #eee;vertical-align:top;white-space:normal;word-break:break-word;overflow-wrap:anywhere;\"\u003eChevrolet\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:8px 12px;border-bottom:1px solid #eee;vertical-align:top;white-space:normal;word-break:break-word;overflow-wrap:anywhere;\"\u003eCorvette\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:8px 12px;border-bottom:1px solid #eee;vertical-align:top;white-space:normal;word-break:break-word;overflow-wrap:anywhere;\"\u003eBase Convertible 2-Door\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:8px 12px;border-bottom:1px solid #eee;vertical-align:top;white-space:normal;word-break:break-word;overflow-wrap:anywhere;\"\u003e5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:left;padding:8px 12px;border-bottom:1px solid #eee;vertical-align:top;white-space:normal;word-break:break-word;overflow-wrap:anywhere;\"\u003e1989-1991\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:8px 12px;border-bottom:1px solid #eee;vertical-align:top;white-space:normal;word-break:break-word;overflow-wrap:anywhere;\"\u003eChevrolet\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:8px 12px;border-bottom:1px solid #eee;vertical-align:top;white-space:normal;word-break:break-word;overflow-wrap:anywhere;\"\u003eCorvette\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:8px 12px;border-bottom:1px solid #eee;vertical-align:top;white-space:normal;word-break:break-word;overflow-wrap:anywhere;\"\u003eBase Hatchback 2-Door\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:8px 12px;border-bottom:1px solid #eee;vertical-align:top;white-space:normal;word-break:break-word;overflow-wrap:anywhere;\"\u003e5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\u003c!-- CONVERMAX_FITMENT_TABLE_END --\u003e","brand":"Hedman Hedders","offers":[{"title":"Default Title","offer_id":44506391216335,"sku":"FBLG_63448","price":792.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/4164\/7055\/files\/s-l1600_df064201-8511-4401-a05d-b53db1b677e3.jpg?v=1779140214","url":"https:\/\/www.cimotorsports.com\/products\/hedman-hedders-h-d-silver-long-tube-headers-for-1984-91-corvette-with-283-400-63448","provider":"CI Motorsports","version":"1.0","type":"link"}