{"product_id":"exhaust-manifold-headers-for-ford-f250-f350-1983-1987-7-5l-engine-2-wheel-drive","title":"Exhaust Manifold Headers for Ford F250 F350 (1983-1987) 7.5L Engine 2-Wheel Drive","description":"\u003ch2\u003eHigh-Flow T-304 Stainless Exhaust Headers for 1983-1987 Ford F-250, F-350 (460 V8 \/ 7th \u0026amp; 8th Gen F-Series)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eDesigned specifically for 2WD 7.5L applications, this stainless steel header set replaces the restrictive factory cast-iron manifolds to optimize exhaust scavenging, lower cylinder head temperatures, and increase low-end torque.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock F-250, F-350 Cast Iron Manifold Bottleneck\u003c\/h3\u003e\n\u003cp\u003eThe factory cast-iron exhaust manifolds on the 385-Series 460 cubic inch V8 are notoriously restrictive, acting as a severe thermal and kinetic bottleneck. Originally designed for mass production and chassis clearance rather than optimal volumetric efficiency, the OEM manifolds suffer from poor flow dynamics and uneven runner paths. Over time, these thick iron blocks retain extreme levels of heat, causing under-hood heat soak that robs the engine of dense intake air and decreases performance. Furthermore, the extreme thermal cycling frequently leads to cracking across the manifold ports or warped mating surfaces, resulting in persistent exhaust leaks, annoying ticking sounds, and compromised engine efficiency under heavy load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis long-tube header set corrects the flow restrictions of the 460 V8 by utilizing 1-3\/4 inch outer diameter (OD) primaries that smoothly transition into high-velocity 3-inch OD collectors. Constructed entirely from premium T-304 stainless steel, these headers resist the severe corrosion and thermal degradation that destroy factory iron. The inclusion of heavy-duty 3\/8-inch thick machined flanges ensures a rigid, warp-free seal against the cylinder head, drastically reducing the risk of exhaust blow-by. By equalizing exhaust pulses and utilizing a 3-inch to 2.5-inch collector reducer, the system accelerates exhaust gas velocity, creating a scavenging effect that aggressively pulls spent gasses from the combustion chamber. This results in significantly lower exhaust gas temperatures (EGTs), improved throttle response, and a broader torque curve for hauling and towing.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e1983-1987 Ford F-250, F-350 (2WD Only)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e7.5L 460 V8 (385 Series) \/ 7th \u0026amp; 8th Gen F-Series\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e245 hp \/ 380 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1983-1987 Ford F-250 7.5L V8 2WD\u003c\/li\u003e\n  \u003cli\u003e1983-1987 Ford F-350 7.5L V8 2WD\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Ford Heavy-Duty Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to handle the severe mechanical stress of towing and hauling, these headers restore crucial lost torque and durability to your classic 7.5L workhorse, ensuring reliable, leak-free performance under heavy payload conditions.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48178017861880,"sku":"DS-EVGYAT5QN","price":374.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/exhaust-manifold-headers-for-ford-f250-f350-1983-1987-7-5l-engine-2-wheel-drive-1.webp?v=1775144510","url":"https:\/\/performancechiptuning.com\/products\/exhaust-manifold-headers-for-ford-f250-f350-1983-1987-7-5l-engine-2-wheel-drive","provider":"Performance Chip Tuning","version":"1.0","type":"link"}