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EVIL ENERGY LS Stainless Steel Coolant Crossover Steam Vent Kit - Complete Leak-Proof Kit for 5.3/6.0 LS1 LS2 LS3 LS6 LS7 LSX Engines Black|Red

SKU: EVCS21-00138BK-000-L
Product Type: Coolant Crossover Kits
$129.99
$129.99
Color: Black

Core Specifications

  • Product: LS Coolant Crossover Steam Vent Kit (red/black anodized options)
  • Compatibility: 5.3L/6.0L LS1, LS2, LS3, LS6, LS7, LSX engines; Gen 3 Truck intakes (not Gen4); Holley/SR1/SR3 Titan (remote MAP required)
  • Material: 304 stainless steel lines + CNC anodized aluminum manifold (red/black)
  • Package: Manifold, pre-labeled tubes, AN fittings, PTFE tape, O-rings, shims, manual

Core Advantages

  • LS-specific design: No modifications needed for fitment.
  • Enhanced cooling: Releases trapped steam, reduces cylinder temps.
  • Leak-proof: Includes O-rings/shims/PTFE tape for secure seals.
  • Durable: Corrosion-resistant 304 stainless steel + anodized aluminum.
  • Dual aesthetics: Red/black options match engine bay styles.

Applications

  • Daily LS builds, high-horsepower NA engines, racing (drag/drift), off-road vehicles.

Secure online checkout with free 1-year warranty, 180-day money-back guarantee, free shipping over $50, and expert customer support from 
EVIL ENERGY.
[Black]

EVIL ENERGY LS Stainless Steel Coolant Crossover Steam Vent Kit - Complete Leak-Proof Kit for 5.3/6.0 LS1 LS2 LS3 LS6 LS7 LSX Engines Black|Red

$129.99

EVIL ENERGY LS Stainless Steel Coolant Crossover Steam Vent Kit - Complete Leak-Proof Kit for 5.3/6.0 LS1 LS2 LS3 LS6 LS7 LSX Engines Black|Red

$129.99
Color: Black

Brand EVIL ENERGY
Product Type LS Coolant Crossover Steam Vent Kit
Color Options Red anodized aluminum manifold / Black anodized aluminum manifold (304 stainless steel lines common for both)
Compatible Engines 5.3L, 6.0L LS series engines: LS1, LS2, LS3, LS6, LS7, LSX
Compatible Intakes SR1/SR3 Titan (remote MAP sensor required), Holley Hi, Holley Sniper, Pro-Flo XT, Super, Frankenstein, Junior, Trinity, Stock Style Plastic Gen 3 Truck Air Intakes
Not compatible with Gen4 Truck intakes
Material - Manifold: CNC-machined aluminum (red/black anodized finish, corrosion-resistant)
- Lines: High-quality 304 stainless steel (resists coolant high-temperature corrosion)
- Seals: O-rings + shims (leak-proof design)
Package Includes 1×Anodized aluminum manifold (red/black), pre-labeled driver/passenger 304 stainless steel tubes, AN fittings, PTFE tape, O-rings, shims, installation manual
Key Function Connects front/rear steam ports to release trapped steam, improves coolant circulation, reduces cylinder temperatures
Application Scenarios Daily-driven LS builds, high-horsepower NA engines, drag/drift/endurance racing, off-road vehicles


The EVIL ENERGY LS Coolant Crossover Steam Vent Kit is a precision-engineered solution to solve common overheating issues in LS engines, available in sleek red or black anodized finishes to match your engine bay aesthetic. Designed exclusively for LS series engines (5.3L/6.0L LS1-LSX), this kit eliminates trapped steam in the cooling system, ensuring your engine runs cooler, more efficiently, and lasts longer—whether you’re on the street, track, or trail.

1. Precision Compatibility for LS Engines

Tailored to fit all popular LS engines (LS1, LS2, LS3, LS6, LS7, LSX) and a wide range of intakes (Holley Sniper, Pro-Flo XT, Gen 3 Truck stock intakes, etc.). Note: A remote MAP sensor is required for SR1/SR3 Titan intakes, and Gen4 Truck intakes are not compatible—ensuring a seamless fit for most LS builds.

2. Enhanced Cooling Performance

By connecting the front and rear steam ports of your LS engine, the kit efficiently releases trapped steam that traditional cooling systems miss. This improves coolant circulation, lowers cylinder head temperatures, and prevents hot spots—critical for high-horsepower builds or harsh driving conditions (racing, off-road).

3. Easy, Leak-Proof Installation

Pre-labeled driver and passenger tubes eliminate guesswork, while the included installation manual guides you step-by-step. The kit comes with all necessary hardware: AN fittings, PTFE tape, O-rings, and shims—ensuring a tight, leak-proof seal that avoids coolant loss and maintains consistent cooling performance.

4. Durable Build for Long-Term Reliability

Constructed with CNC-machined aluminum manifolds (red/black anodized for corrosion resistance) and 304 stainless steel lines, the kit withstands high engine bay temperatures and coolant exposure. This durability reduces maintenance costs and ensures the kit performs reliably for years, even in extreme use cases.

5. Aesthetic & Functional Design

Choose between red or black anodized manifolds to complement your engine bay’s style—no need to sacrifice looks for performance. The compact design fits in tight spaces, making it ideal for both stock and modified LS builds.

Why Choose EVIL ENERGY LS Steam Vent Kit?

1. LS-Specific Engineering (No Generic Fits)

  • Generic steam vent kits often require modifications to fit LS engines, leading to leaks or poor performance.
  • Our kit is designed exclusively for LS1-LSX engines, with pre-matched tubes and fittings that fit like OEM—no custom fabrication needed.

2. Complete Kit (No Missing Parts)

  • Competitors often sell "partial kits" that require extra purchases for fittings or seals.
  • Our kit includes everything you need: manifold, tubes, fittings, PTFE tape, O-rings, shims, and a manual—install right out of the box.

3. Corrosion-Resistant Materials (Built for LS Heat)

  • Cheap kits use mild steel lines that rust or aluminum manifolds that corrode in coolant, failing within months.
  • 304 stainless steel lines and anodized aluminum manifolds resist high temperatures and coolant damage—built to outlast your LS engine.

4. Versatile for All LS Use Cases

  • Works for daily drivers, race cars, and off-road vehicles—unlike specialized kits that only fit one scenario.
  • Reduces overheating in both stock and high-horsepower builds, ensuring consistent performance no matter how you use your vehicle.

FAQ

Q: Will this kit fit my 5.3L LS truck engine?

A: Yes—if your truck has a Gen 3 Stock Style Plastic Air Intake. It fits 5.3L/6.0L LS engines (including truck variants) but is not compatible with Gen4 Truck intakes. Confirm your intake generation before purchasing.

Q: Do I need special tools to install this kit?

A: No—basic hand tools (wrenches, screwdrivers) are enough. The pre-labeled tubes and clear manual make installation straightforward, even for beginners. Allow 1-2 hours for a complete install.

Q: Why do I need a remote MAP sensor for SR1/SR3 Titan intakes?

A: SR1/SR3 Titan intakes have MAP sensor ports that conflict with the steam vent kit’s manifold. A remote MAP sensor relocates this component, ensuring compatibility without modifying the intake or kit.

Q: Does the kit prevent coolant leaks?

A: Yes—included O-rings and shims create a leak-proof seal between the manifold, tubes, and engine. We also include PTFE tape for extra security on threaded fittings, minimizing the risk of coolant loss.

Q: Can I use this kit for a turbocharged LS build?

A: Absolutely—turbocharged LS engines generate more heat, making steam venting even more critical. The kit’s 304 stainless steel lines and anodized manifold withstand turbo temperatures, ensuring reliable cooling for forced-induction setups.

Q: What’s the difference between the red and black kits?

A: Only the color of the aluminum manifold differs—both kits use identical 304 stainless steel lines, fittings, and hardware. Choose based on your engine bay’s aesthetic (red for bold looks, black for a sleek, understated finish).

Brand Summary

Policy Details
Cancellation Policy Orders can be canceled within 48 hours of placement. Refund processed in 3-5 business days.
Returns Policy Returns accepted within 180 days. Full refund within 90 days; 15% fee for 90-180 days.
Non-Returnable Items Only regular-priced items are eligible for refunds; sale items are non-refundable.
Refund Processing If no refund received, check your bank/credit card. For ongoing issues, contact support@ievilenergy.com.

Return Reasons

  1. Quality Issues: Provide photos/videos; we cover return shipping.
  2. Wrong Item Ordered: Buyer covers return shipping; email within 30 days.
  3. Change of Mind: Buyer covers return shipping; email within 30 days.
  4. Shipping Damage: Inspect packages; do not sign for damaged items.
  5. Incorrect Item Shipped: Contact within 7 days.

Price Protection Policy

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

Disclaimer

EVIL ENERGY reserves the right to interpret, modify, or terminate this policy in accordance with applicable laws and regulations.

If you need further information or assistance, feel free to ask!

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