{"product_id":"radium-fuel-rails-gm-vortec-8100-l18-big-block-20-0862","title":"Radium Fuel Rails | GM Vortec 8100 L18 Big Block (20-0862)","description":"\u003cp\u003e\u003cstrong\u003eThe 8.1 was built to haul, not to make power. The factory rails are the first thing in the way when you change that.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eRadium Engineering fuel rail set for the GM Vortec 8100 L18 big block\u003c\/strong\u003e replaces the factory rails with a pair CNC machined from 6061 aluminum, black anodized and laser etched. Each rail carries \u003cstrong\u003esix 8AN ORB (3\/4in-16) ports, twelve across the pair\u003c\/strong\u003e, which is an unusual amount of plumbing flexibility and suits both return and returnless configurations.\u003c\/p\u003e\n\u003ch3\u003eWhat You'll Feel\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFlow capacity that stops being the limit on a built 8.1\u003c\/li\u003e\n\u003cli\u003eTwelve ORB ports to place a regulator, gauge, or damper wherever the engine bay allows\u003c\/li\u003e\n\u003cli\u003eBillet rails in place of the factory parts, on stainless mounting feet\u003c\/li\u003e\n\u003cli\u003eA rail set that works with either the early return or later returnless plumbing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCNC machined 6061 aluminum, black anodized and laser etched\u003c\/li\u003e\n\u003cli\u003eSix 8AN ORB ports per rail, twelve total, tapped 3\/4in-16\u003c\/li\u003e\n\u003cli\u003eFour stainless steel mounting feet with stainless hardware\u003c\/li\u003e\n\u003cli\u003eSuits return style and returnless fuel system configurations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe Details\u003c\/h3\u003e\n\u003cp\u003eThis is an \u003cstrong\u003eupgrade rail, not a top feed conversion\u003c\/strong\u003e. OEM or OEM-equivalent injectors are required, matching factory height and upper and lower O-ring dimensions. Radium does not make injector recommendations; consult your tuner for flow rate and the injector manufacturer for a part number with the correct dimensions.\u003c\/p\u003e\n\u003cp\u003eThe rails are only half the job. GM changed the fuel system partway through this engine's life, so the matching plumbing kit is year-specific: \u003cstrong\u003e20-1062 for 01-03 return style\u003c\/strong\u003e trucks, which brings an adjustable regulator and gauge, and \u003cstrong\u003e20-1162 for 04-10 returnless\u003c\/strong\u003e trucks, which brings a pulse damper instead. Both are sold separately.\u003c\/p\u003e\n\u003cp\u003eNo fittings are supplied with the rails. ORB fittings must be chosen to suit your plumbing, and leave clearance around any port destined to carry a regulator, gauge, or damper.\u003c\/p\u003e\n\u003ch3\u003eKit Includes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAnodized billet aluminum fuel rails (x2)\u003c\/li\u003e\n\u003cli\u003eStainless steel mounting feet (x4)\u003c\/li\u003e\n\u003cli\u003eStainless steel mounting hardware\u003c\/li\u003e\n\u003cli\u003eNOT included: AN fittings, fuel injectors, plumbing kit, regulator, and gauge\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e01-07 Chevrolet Silverado 2500HD and 3500HD, GMC Sierra 2500HD and 3500HD\u003c\/li\u003e\n\u003cli\u003e01-06 Chevrolet Suburban XL 2500 and GMC Yukon XL 2500\u003c\/li\u003e\n\u003cli\u003e01-02 Chevrolet and GMC C3500HD, 02-06 Chevrolet Avalanche 2500\u003c\/li\u003e\n\u003cli\u003e01-10 Chevrolet Kodiak and GMC Topkick\u003c\/li\u003e\n\u003cli\u003eWorkhorse Class A W20, W22, W24, and W25 motorhomes\u003c\/li\u003e\n\u003cli\u003eMalibu Wakesetter 23, 25, and 247 LSV boats; Mastercraft X-45, ProStar 197, and ProStar 214 boats\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUpgrade rail: OEM or OEM-equivalent injectors required\u003c\/li\u003e\n\u003cli\u003eAll fittings sold separately\u003c\/li\u003e\n\u003cli\u003eThe matching plumbing kit differs by year: 20-1062 for 01-03, 20-1162 for 04-10\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Radium Engineering","offers":[{"title":"Default Title","offer_id":43700782792771,"sku":"20-0862","price":474.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/files\/20-0862_1200px_wide_d60c4291-601b-4476-91df-9b5bb879f716.jpg?v=1787356452","url":"https:\/\/www.tunedbyshawn.com\/products\/radium-fuel-rails-gm-vortec-8100-l18-big-block-20-0862","provider":"Tuned by Shawn","version":"1.0","type":"link"}