{"product_id":"stainless-steel-exhaust-headers-for-chevrolet-bel-air-150-210-1955-1957-4-6l-5-4l-5-7l-6-6l","title":"Stainless Steel Exhaust Headers for Chevrolet Bel Air 150 210 (1955-1957) 4.6L 5.4L 5.7L 6.6L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Flow Mandrel-Bent Stainless Steel Exhaust Headers for 1955-1957 Chevrolet Bel Air, 150, 210 (Tri-Five)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Stainless Steel Exhaust Headers replace the restrictive cast iron exhaust manifolds on 1955-1957 Chevrolet Bel Air, 150, and 210 models to maximize exhaust scavenging and reduce cylinder backpressure.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Chevrolet Bel Air, 150, 210 Exhaust Restriction\u003c\/h3\u003e\n\u003cp\u003eFactory \u003cstrong\u003eTri-Five\u003c\/strong\u003e cast iron \"ram horn\" or log manifolds choke cylinder scavenging on small block V8 builds. Their abrupt bends, tight internal casting radii, and shared runners generate severe acoustic reflection and thermal choke points. This thermal retention increases cylinder head temperatures, restricts exhaust gas velocity at higher RPMs, and robs classic \u003cstrong\u003eSmall Block Chevy (SBC Gen I)\u003c\/strong\u003e displacements—from \u003cstrong\u003e283 ci (4.6L)\u003c\/strong\u003e up to \u003cstrong\u003e400 ci (6.6L)\u003c\/strong\u003e—of volumetric efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eFabricated from corrosion-resistant \u003cstrong\u003eT-304 stainless steel\u003c\/strong\u003e, these headers feature continuous mandrel-bent 1-5\/8 inch primary tubes merging into smooth 2-1\/2 inch collectors. Equalized runner paths accelerate scavenging by utilizing negative pressure waves to evacuate spent combustion gases from adjacent cylinders. Thick, precision CNC-machined head flanges resist thermal warpage to guarantee a leak-free seal against standard and Vortec cylinder heads. The design ensures steering clearance for original equipment and 605 power steering boxes, clearing the stock V8 pitman arm and side engine mounts.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2 Exhaust Headers (Left and Right)\u003c\/li\u003e\n  \u003cli\u003e2 Collector Reducers\u003c\/li\u003e\n  \u003cli\u003e2 Header Gaskets\u003c\/li\u003e\n  \u003cli\u003e4 Collector Gaskets\u003c\/li\u003e\n  \u003cli\u003eMounting Bolts\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: solid font-size: min-width:\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;\"\u003e1955-1957 Chevrolet Bel Air, 150, 210\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;\"\u003eSBC Gen I (283-400 ci) \/ Tri-Five\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;\"\u003e185 hp \/ 275 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\u003e1955-1957 Chevrolet Bel Air Small Block V8 283-400\u003c\/li\u003e\n  \u003cli\u003e1955-1957 Chevrolet 150 Small Block V8 283-400\u003c\/li\u003e\n  \u003cli\u003e1955-1957 Chevrolet 210 Small Block V8 283-400\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 Tri-Five Bel Air, 150, 210?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for 1955-1957 Chevrolet Bel Air, 150, and 210 models equipped with \u003cstrong\u003eSBC Gen I\u003c\/strong\u003e standard or Vortec cylinder heads. \u003cstrong\u003eThese headers do not clear stock manual clutch linkage, and will not fit LT1, ZZ4, or D-port cylinder heads.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eDo the header bolts require retorquing after installation?\u003c\/h4\u003e\n\u003cp\u003eYes, retorque all mounting bolts after the first two to three operational heat cycles to prevent gasket blowouts caused by thermal expansion.\u003c\/p\u003e\n\n\u003ch3\u003eThe Chevrolet Caliber\u003c\/h3\u003e\n\u003cp\u003eEliminate exhaust choke and unlock the authentic small-block sound and power curve demanded by classic Chevrolet street and strip builds.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67896027906296,"sku":"DS-ETWGSBBY2","price":202.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/stainless-steel-exhaust-headers-for-chevrolet-bel-air-150-210-1955-1957-4-6l-5-4l-5-7l-6-6l-1.jpg?v=1793291159","url":"https:\/\/performancechiptuning.com\/es\/products\/stainless-steel-exhaust-headers-for-chevrolet-bel-air-150-210-1955-1957-4-6l-5-4l-5-7l-6-6l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}