{"product_id":"23-67-chevrolet-block-hugger-ls-swap-exhaust-headers","title":"(23-67) Chevrolet Block Hugger LS Swap Exhaust Headers","description":"\u003ch1\u003eCOMPATIBLE: (LS SERIES SWAPS)\u003c\/h1\u003e\n\u003ch1\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003e1923-1954 Cars\/Trucks\/Cadillac\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003ch1\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e1958-1964 Impala\/Biscayne\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e1950-1964 Bel Air\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e1953-1967 Corvette\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e1955-1961 Nomad\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eFor LS series engine swaps only\" These do not work on standard SBC or BBC\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eSurface: Mirror Polish Model: EH28087 Primary Tube Diameter: 1 5\/8(41.3mm) Collector Attachment: 3-bolt flange Collector Diameter: 2.5 (63.5mm) Primary Tube Gauge: 16 Gauge Flange Thickness: 3\/8 (9.5mm) \u003c\/span\u003e\u003c\/h2\u003e\n\u003ch2\u003e\n\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eThe structural differences between exhaust headers and manifolds are the material and size. From the material, exhaust headers are made of lighter, thinner steel, while exhaust manifolds are made of thick iron. Exhaust headers are also longer than exhaust manifolds. When in use, exhaust manifolds create back pressure, which lowers performance. Because each cylinder of the engine is given its own tube, however, headers eliminate this problem; thus, allowing the gases to exit without the creation of back pressure. Therefore, exhaust headers are a BETTER choice than an exhaust manifold. \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Predator Performance®","offers":[{"title":"Default Title","offer_id":42358641229918,"sku":"FLES08278","price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/5315\/8515\/files\/8_7c9ff298-bf0c-4f4e-92fd-6eff17049d30.webp?v=1776383574","url":"https:\/\/10secondracing.com\/products\/23-67-chevrolet-block-hugger-ls-swap-exhaust-headers","provider":"10 Second Racing","version":"1.0","type":"link"}