Motion Raceworks 4-Port LS Steam Vent / Coolant Crossover Kit – Stainless 4 Corner System

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4-Port LS Steam Vent / Coolant Crossover Kit – Better Cooling, Safer Tuning Prevent steam pockets, hot cylinders, and unsafe tuneups with the Motion Raceworks 4-Port LS Steam Vent Kit. This stainless system connects all four corners of your LS engine’s coolant circuit to help remove trapped steam, balance cylinder temperatures, and protect against head gasket failures under boost or elevated load. Key Features: Stainless steel corner ports & CNC aluminium manifold; each kit is hand-built. Black anodised finish on aluminium blocks for durability and corrosion protection. Uses high-quality Fragola lines and fittings rated for severe duty. Includes all corner blocks, manifold, AN fittings, mounting bracket & gaskets. Fitment / Compatibility: Designed to bolt to all LS engine series (Gen III / Gen IV including LS1, LS2, LS3, LS6, etc.). Tested and compatible with many intake manifolds: Texas Speed SR family, Holley Hi-Ram, Holley Sniper, Edelbrock Pro-Flo XT, Edelbrock Super Victor, SR1/SR3 Titan, Frankenstein, Victor Junior, stock-style plastic Gen 3 truck intakes. Provides adequate clearance for factory knock sensors on Gen 3 heads. Important Note:Clearance must be checked between the valley cover and the intake. This kit requires approximately 1.5 inches of vertical clearance from valley cover to intake. Some intakes (low profile plastic, certain truck intakes, and some aftermarket “Fast 102” style) may not allow fitment without modification. Why Choose This Kit:Ideal for modified, boosted or high-load LS builds. Helps eliminate trapped coolant/steam, improves thermal consistency, reduces head gasket risk, and supports safer tuning under demanding conditions. Show more