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Top Street Performance

GM LS Stainless Steel Crossover Steam Vent Kit

GM LS Stainless Steel Crossover Steam Vent Kit

SKU: SKU: 81052

Regular price $135.81
Sale price $135.81 Regular price $154.33
Shipping calculated at checkout.

In stock

Top Street Performance (TSP) is committed to providing high-quality performance parts while complying with emissions regulations. This product is designed for use on vehicles that comply with federal emissions regulations. It is the customer’s responsibility to verify that this part is legal for use in their state or local jurisdiction. Check with your local emissions authority before purchasing.

Product Details

Features

LS Steam Vent Routing – Helps remove trapped steam from the cooling system

Stainless Steel Lines – Built for heat resistance and long-term durability

Five-Branch Layout – Supports complete crossover vent plumbing

Cooling System Stability – Promotes consistent coolant circulation

Description

This LS stainless steel crossover steam vent kit is designed to help route trapped steam and air away from the cylinder heads for improved cooling system stability. It supports proper coolant circulation in LS-based performance and swap applications.

Steam Vent Routing
Helps remove trapped steam and air pockets that can interfere with consistent coolant flow.

Stainless Steel Line Construction
Stainless steel line material provides durability and resistance to heat in demanding engine bay environments.

Five-Branch Layout
Multi-branch design supports complete steam vent routing across compatible LS cylinder head configurations.

LS Cooling System Integration
Designed for LS-based cooling systems requiring crossover steam vent plumbing.

Specs

Branch Quantity5
ColorBlack
Line MaterialStainless Steel
Manifold ColorBlack
Manifold MaterialAluminum
MaterialAluminum
Mounting Hardware IncludedNo

Engine Fitment

COMPATIBLE WITH
CHEVROLET GEN III / IV LS SMALL BLOCK V8
• 4.8L / 293 in³ (LR4, LY2)
• 5.3L / 325 in³ (LM7, L59, LM4, L33, LC9, LH6, LY5, LMG)
• 5.7L / 346 in³ (LS1, LS6)
• 6.0L / 364 in³ (LQ4, LQ9, LS2, LY6, L76, L96)
• 6.2L / 376 in³ (LS3, L92, L99, LSA)

COMMON VEHICLE APPLICATIONS
Chevrolet Silverado 1500 / 2500 / 3500
GMC Sierra 1500 / 2500 / 3500
Chevrolet Tahoe / Suburban
GMC Yukon / Yukon XL
Chevrolet Camaro / Corvette (LS equipped)
Pontiac GTO / G8 (LS equipped)

Q&A

Emissions Notice

This product does not affect vehicle emissions and is not subject to emissions compliance regulations.