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 & Tape

The EVIL ENERGY LS coolant steam port crossover kit is designed for compatible GM LS series engines, including LS1, LSX, LM7, LR4, LQ4, LS6, L59, LQ9, LM4, and other listed LS applications. This 2-port LS steam port kit 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.

This 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 not compatible with FAST 102 intake manifolds.

Key Features

• Designed for Compatible GM LS Engines: 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.
• 2-Port Steam Port Crossover Layout: 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.
• Complete LS Steam Port Kit Components: 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.
• Stainless Steel Braided Hose: 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.
• Aluminum Alloy Coolant Ports: 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.
• Useful for LS Builds and Swaps: 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.

LS Engine Steam Port Crossover Solution

The 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.

This type of LS steam port crossover kit 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.

Fitment is important. This kit is not compatible with FAST 102 intake manifolds. Before installation, verify intake manifold clearance, steam port position, coolant return routing, hose path, and nearby heat or moving components.

Stainless Steel Braided Hose for Engine-Bay Routing

This 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.

The 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.

Complete Kit for LS Steam Port Crossover Installation

The 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.

This 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.

Important Fitment and Installation Notes

• Confirm your LS engine family and steam port layout before ordering.
• This kit is designed for compatible GM LS applications and should not be described as fitting every LS build.
• This kit is not compatible with FAST 102 intake manifolds.
• Verify the upper cylinder head coolant passages above cylinders #1 and #2 before installation.
• Check intake manifold clearance, hose routing, coolant return location, and nearby heat or moving components.
• Route the stainless steel braided hose away from belts, pulleys, headers, exhaust heat, and sharp edges.
• Use PTFE tape only on suitable threaded connections and avoid contaminating coolant passages.
• Bleed the cooling system after installation and recheck coolant level after the first heat cycle.
• This 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.

FAQ

Q: What does this LS coolant steam port crossover kit do?
A: 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.

Q: Is this the same as an LS steam port kit?
A: 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.

Q: Which engines does this kit fit?
A: 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.

Q: Is this kit compatible with FAST 102 intake manifolds?
A: No. This kit is not compatible with FAST 102 intake manifolds.

Q: Does this kit connect all four steam ports?
A: 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.

Q: Can this kit fix every overheating issue?
A: 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.

Q: What should I check before installation?
A: Check engine compatibility, steam port layout, intake manifold clearance, hose routing, fitting direction, sealing surfaces, coolant return location, and nearby heat or moving components.

Q: Do I need to bleed the cooling system after installation?
A: 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.

Brand Summary

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1. Quality Issues: Provide photos/videos; we cover return shipping.
2. Wrong Item Ordered: Buyer covers return shipping; email within 30 days.
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5. Incorrect Item Shipped: Contact within 7 days.

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Effective from August 25, 2024. Price drops within 7 days of purchase can be claimed.

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