{"product_id":"exhaust-header-for-ford-thunderbird-1968-1971-7-0l","title":"Exhaust Header for Ford Thunderbird (1968-1971) 7.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Flow Shorty Hugger Exhaust Headers for 1968-1971 Ford Thunderbird (Gen 5)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The shorty hugger exhaust headers replace the restrictive factory cast-iron log manifolds on the 1968-1971 Ford Thunderbird to scavenge exhaust gases efficiently, reduce backpressure, and lower underhood operating temperatures.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford Thunderbird Flow Restriction\u003c\/h3\u003e\n\u003cp\u003eFactory cast-iron exhaust manifolds on the \u003cstrong\u003eFord 385-series 429\u003c\/strong\u003e (7.0L) V8 feature tight, asymmetrical log passages with abrupt right-angle turns. This archaic layout creates excessive backpressure, traps thermal energy near the cylinder heads, and inhibits scavenging across adjacent exhaust pulses. Over decades of thermal cycling, original cast iron is prone to stress micro-fractures, warped sealing surfaces, and persistent exhaust leaks that compromise volumetric efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThese shorty hugger headers are fabricated from durable stainless steel to deliver superior corrosion resistance and thermal dissipation. Featuring 1-7\/8-inch by 1-5\/8-inch primary inlets paired with a smooth 2.50-inch collector outlet, they optimize exhaust gas velocity without crowding tight engine bays. Heavy-duty 7\/16-inch head flanges and 3\/8-inch outlet flanges are CNC-machined flat to resist thermal warpage and blowouts. Precision TIG and MIG welded joints ensure structural rigidity under high-load conditions while maintaining tight-clearance hugger geometry around factory steering boxes and suspension linkages.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2 Stainless Steel Shorty Hugger Exhaust Headers\u003c\/li\u003e\n  \u003cli\u003eExhaust Header Pipes\u003c\/li\u003e\n  \u003cli\u003eExhaust Flange Gaskets\u003c\/li\u003e\n  \u003cli\u003eMounting Bolts and Hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e1968-1971 Ford Thunderbird\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eFord 385-Series 429 (7.0L) \/ Gen 5 Platform\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e360 hp \/ 480 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1968 Ford Thunderbird 7.0L 429 cu in V8\u003c\/li\u003e\n  \u003cli\u003e1969 Ford Thunderbird 7.0L 429 cu in V8\u003c\/li\u003e\n  \u003cli\u003e1970 Ford Thunderbird 7.0L 429 cu in V8\u003c\/li\u003e\n  \u003cli\u003e1971 Ford Thunderbird 7.0L 429 cu in V8\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the Gen 5 Thunderbird?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 1968-1971 Ford Thunderbird equipped with the \u003cstrong\u003eFord 385-series 429\u003c\/strong\u003e 7.0L big block engine. \u003cstrong\u003eDoes not fit vehicles equipped with small block Windsor engines or later 460 engine swaps using non-standard cylinder head port configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eAre oxygen sensor bungs integrated into these collectors?\u003c\/h4\u003e\n\u003cp\u003eNo, these headers feature solid 2.50-inch collector outlets with no O2 sensor bungs, engineered specifically for non-catalytic, carbureted vintage setups.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Muscle Caliber\u003c\/h3\u003e\n\u003cp\u003eBuilt to handle the immense torque output of big-block Ford muscle, these headers provide rigid sealing, streamlined scavenging, and deep exhaust resonance under heavy load.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67564820431096,"sku":"DS-EJMARO47J","price":179.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/exhaust-header-for-ford-thunderbird-1968-1971-7-0l-1.jpg?v=1791049476","url":"https:\/\/performancechiptuning.com\/fr\/products\/exhaust-header-for-ford-thunderbird-1968-1971-7-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}