{"product_id":"ls-coolant-crossover-steam-vent-kit-gm-ls","title":"EVIL ENERGY LS Coolant Steam Port Crossover Kit for GM LS LS1 LSX LM7 LQ4 LS6 LQ9 Engines, Throttle Body Bypass Hose Kit with Steel Braided Hose \u0026 Tape","description":"\u003cp\u003e---!@!start!@!---Specifications---!@!end!@!---\u003c\/p\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eEVIL ENERGY\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eFit Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eVehicle Specific Fit\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGM LS Series Engines, including LS1, LSX, LM7, LR4, LQ4, LS6, L59, LQ9, LM4, and other compatible LS applications\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eNot Compatible With\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eFAST 102 intake manifolds\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePort Design\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e2-Port steam port crossover design connecting the upper cylinder head coolant passages above cylinders #1 and #2\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eHose Material\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eStainless steel braided hose\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCoolant Port Material\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eAluminum alloy\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eFitting Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eSteam port crossover with plugs and O-ring seals\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eSilver\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e1.5 cm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eItem Dimensions (L x W)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e10.4\" x 1.8\"\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eIncluded Components\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e2 x plugs with O-rings, 4 x bolts, 2 x coolant ports, 1 x PTFE tape, 1 x stainless steel braided hose\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCoolant Flow Design\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eDesigned to connect the upper LS cylinder head steam ports and support steam vent routing; throttle body coolant routing depends on the vehicle build\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eInstallation Location\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eCylinder head coolant passages above cylinders #1 and #2\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCorrosion Resistance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eStainless steel braided hose and aluminum alloy ports designed for heat, coolant exposure, and corrosion resistance\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eLS swaps, street performance builds, drag, drift, endurance, and off-road projects where compatible steam port crossover routing is required\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e---!@!start!@!---Description---!@!end!@!---\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0590\/5403\/0984\/files\/ls-coolant-steam-port-crossover-kit-gm-ls-lm7-lq4-aplus-com-Premium_A_Module_12_LS_steam_port_crossover_carousel_slide_1.webp?v=1783495379\" alt=\"EVIL ENERGY LS coolant steam port crossover kit with stainless steel braided hose, aluminum coolant ports, plugs, O-rings, bolts, and PTFE tape\"\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eEVIL ENERGY LS coolant steam port crossover kit\u003c\/strong\u003e is designed for compatible \u003cstrong\u003eGM LS series engines\u003c\/strong\u003e, including LS1, LSX, LM7, LR4, LQ4, LS6, L59, LQ9, LM4, and other listed LS applications. This \u003cstrong\u003e2-port LS steam port kit\u003c\/strong\u003e connects the upper cylinder head coolant passages above cylinders #1 and #2 to help route trapped steam or air pockets away from the cylinder head area.\u003c\/p\u003e\n\n\u003cp\u003eThis kit includes a stainless steel braided hose, aluminum alloy coolant ports, plugs with O-rings, bolts, and PTFE tape for LS steam port crossover installation. Before ordering, confirm your engine family, cylinder head steam port layout, intake manifold clearance, and cooling-system routing. This kit is \u003cstrong\u003enot compatible with FAST 102 intake manifolds\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0590\/5403\/0984\/files\/ls-coolant-steam-port-crossover-kit-gm-ls-lm7-lq4-aplus-com-Premium_A_Module_12_LS_steam_port_crossover_carousel_slide_3.webp?v=1783495435\" alt=\"LS steam port crossover kit components with stainless braided hose, aluminum coolant ports, O-ring plugs, bolts, and PTFE tape\"\u003e\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDesigned for Compatible GM LS Engines:\u003c\/strong\u003e This EVIL ENERGY LS coolant crossover kit is made for listed GM LS series engines, including LS1, LSX, LM7, LR4, LQ4, LS6, L59, LQ9, LM4, and other compatible LS applications. Always verify your engine, intake manifold, and steam port configuration before purchase.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2-Port Steam Port Crossover Layout:\u003c\/strong\u003e The kit connects the upper cylinder head coolant passages above cylinders #1 and #2, helping support LS steam vent routing and coolant system air management.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComplete LS Steam Port Kit Components:\u003c\/strong\u003e Package includes 2 plugs with O-rings, 4 bolts, 2 aluminum alloy coolant ports, 1 roll of PTFE tape, and 1 stainless steel braided hose for a clean LS steam port crossover installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStainless Steel Braided Hose:\u003c\/strong\u003e The braided hose is designed for engine-bay routing where heat exposure, coolant contact, and abrasion resistance matter. Route the hose away from sharp edges, moving parts, and direct exhaust heat.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAluminum Alloy Coolant Ports:\u003c\/strong\u003e The included coolant ports are made from aluminum alloy to support durability, corrosion resistance, and stable sealing when installed with proper surface preparation and correct hardware tightening.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUseful for LS Builds and Swaps:\u003c\/strong\u003e This LS steam vent kit is suitable for LS swaps, street performance builds, drag cars, drift cars, endurance builds, and off-road projects where compatible 2-port steam crossover routing is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0590\/5403\/0984\/files\/ls-coolant-steam-port-crossover-kit-gm-ls-lm7-lq4-aplus-com-Premium_A_Module_2_LS_steam_port_crossover_background_5.webp?v=1783495436\" alt=\"EVIL ENERGY 2-port LS coolant steam port crossover kit for compatible GM LS engines\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eLS Engine Steam Port Crossover Solution\u003c\/h3\u003e\n\n\u003cp\u003eThe EVIL ENERGY LS Coolant Steam Port Crossover Kit is built for compatible GM LS engine applications, including LS1, LSX, LM7, LR4, LQ4, LS6, L59, LQ9, LM4, and other listed LS engines. The 2-port design connects the upper cylinder head coolant passages above cylinders #1 and #2, helping trapped steam or air move out of the cylinder head steam port area.\u003c\/p\u003e\n\n\u003cp\u003eThis type of \u003cstrong\u003eLS steam port crossover kit\u003c\/strong\u003e is commonly used on LS swaps and modified LS builds where coolant routing, intake clearance, and steam vent plumbing need to be checked carefully. Depending on your setup, the kit may be used as part of a throttle body coolant bypass-style routing, but final routing depends on the vehicle build and cooling system layout.\u003c\/p\u003e\n\n\u003cp\u003eFitment is important. This kit is \u003cstrong\u003enot compatible with FAST 102 intake manifolds\u003c\/strong\u003e. Before installation, verify intake manifold clearance, steam port position, coolant return routing, hose path, and nearby heat or moving components.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0590\/5403\/0984\/files\/ls-coolant-steam-port-crossover-kit-gm-ls-lm7-lq4-aplus-com-Premium_A_Module_5_LS_steam_port_crossover_image_4.webp?v=1783495484\" alt=\"Stainless steel braided LS steam port crossover hose with aluminum coolant ports for GM LS engines\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eStainless Steel Braided Hose for Engine-Bay Routing\u003c\/h3\u003e\n\n\u003cp\u003eThis LS coolant crossover kit uses a stainless steel braided hose and aluminum alloy coolant ports for use in demanding engine-bay environments. The braided hose helps protect the coolant line from abrasion and heat exposure, while still allowing flexible routing around intake components, brackets, and accessory-drive areas.\u003c\/p\u003e\n\n\u003cp\u003eThe aluminum alloy coolant ports and included plugs with O-rings are designed to support secure steam port sealing when installed on clean, undamaged surfaces. The included PTFE tape can be used where appropriate on threaded connections. Avoid over-tightening small coolant-port hardware, and always inspect the system after the first heat cycle.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0590\/5403\/0984\/files\/ls-coolant-steam-port-crossover-kit-gm-ls-lm7-lq4-aplus-com-Premium_A_Module_2_LS_steam_port_crossover_background_4.webp?v=1783495435\" alt=\"LS coolant crossover hose and steam port fittings for upper cylinder head coolant passage connection\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eComplete Kit for LS Steam Port Crossover Installation\u003c\/h3\u003e\n\n\u003cp\u003eThe EVIL ENERGY LS steam port crossover kit includes the key components needed for a 2-port steam vent layout: 2 plugs with O-rings, 4 mounting bolts, 2 aluminum alloy coolant ports, 1 roll of PTFE tape, and 1 stainless steel braided hose.\u003c\/p\u003e\n\n\u003cp\u003eThis kit is suitable for LS engine projects where the builder needs to connect the upper cylinder head steam ports and route trapped steam or air back into the cooling system path. Installation should be checked carefully after the first heat cycle. Recheck fittings, hose routing, coolant level, and any signs of seepage after bleeding the cooling system.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0590\/5403\/0984\/files\/ls-coolant-steam-port-crossover-kit-gm-ls-lm7-lq4-aplus-com-Premium_A_Module_2_LS_steam_port_crossover_background_3.webp?v=1783495436\" alt=\"Installed LS steam port crossover kit with stainless braided hose and aluminum coolant fittings\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment and Installation Notes\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eConfirm your LS engine family and steam port layout before ordering.\u003c\/li\u003e\n  \u003cli\u003eThis kit is designed for compatible GM LS applications and should not be described as fitting every LS build.\u003c\/li\u003e\n  \u003cli\u003eThis kit is not compatible with FAST 102 intake manifolds.\u003c\/li\u003e\n  \u003cli\u003eVerify the upper cylinder head coolant passages above cylinders #1 and #2 before installation.\u003c\/li\u003e\n  \u003cli\u003eCheck intake manifold clearance, hose routing, coolant return location, and nearby heat or moving components.\u003c\/li\u003e\n  \u003cli\u003eRoute the stainless steel braided hose away from belts, pulleys, headers, exhaust heat, and sharp edges.\u003c\/li\u003e\n  \u003cli\u003eUse PTFE tape only on suitable threaded connections and avoid contaminating coolant passages.\u003c\/li\u003e\n  \u003cli\u003eBleed the cooling system after installation and recheck coolant level after the first heat cycle.\u003c\/li\u003e\n  \u003cli\u003eThis kit can help route trapped steam or air, but cooling performance also depends on the radiator, water pump, thermostat, fans, coolant condition, and installation quality.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What does this LS coolant steam port crossover kit do?\u003c\/strong\u003e\u003cbr\u003e\nA: This LS coolant crossover kit connects the upper cylinder head steam ports above cylinders #1 and #2 to help route trapped steam or air away from the cylinder head steam port area.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is this the same as an LS steam port kit?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. Many users search for this type of product as an LS steam port kit, LS steam vent kit, LS coolant crossover kit, or LS steam port crossover kit.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Which engines does this kit fit?\u003c\/strong\u003e\u003cbr\u003e\nA: It is designed for compatible GM LS series engines, including LS1, LSX, LM7, LR4, LQ4, LS6, L59, LQ9, LM4, and other listed LS applications. Confirm your exact engine, cylinder head steam port layout, and intake setup before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is this kit compatible with FAST 102 intake manifolds?\u003c\/strong\u003e\u003cbr\u003e\nA: No. This kit is not compatible with FAST 102 intake manifolds.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Does this kit connect all four steam ports?\u003c\/strong\u003e\u003cbr\u003e\nA: No. This is a 2-port LS steam port crossover kit designed to connect the upper cylinder head coolant passages above cylinders #1 and #2. If your build requires front and rear four-corner steam routing, choose a compatible 4-port setup.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can this kit fix every overheating issue?\u003c\/strong\u003e\u003cbr\u003e\nA: No. It can help route trapped steam or air, but overheating may also be caused by the radiator, thermostat, water pump, fans, coolant level, hose routing, air trapped elsewhere, or engine condition.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What should I check before installation?\u003c\/strong\u003e\u003cbr\u003e\nA: Check engine compatibility, steam port layout, intake manifold clearance, hose routing, fitting direction, sealing surfaces, coolant return location, and nearby heat or moving components.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Do I need to bleed the cooling system after installation?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. After installing an LS steam vent kit, bleed the cooling system, refill coolant as needed, and inspect for seepage after the first heat cycle.\u003c\/p\u003e\n","brand":"EVIL ENERGY","offers":[{"title":"Default Title","offer_id":46173931733128,"sku":"EVBQP0001001","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0590\/5403\/0984\/files\/ls-coolant-steam-port-crossover-kit-gm-ls-lm7-lq4-gallery-01-branded.webp?v=1783495608","url":"https:\/\/www.ievilenergy.com\/products\/ls-coolant-crossover-steam-vent-kit-gm-ls","provider":"EVILENERGY","version":"1.0","type":"link"}