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860 Performance

860 Performance Hard-Lined LSX Steam Vent Kit

SKU: 03-51008

$215.99 USD
  • Easy Installation
  • Billet Aluminum Distribution Block & Steam Port Blocks
  • Pre-Bent 1/4" Stainless Steel Hard-Lines
  • Allows Water Circulation Through All 4 Steam Ports
  • Helps Prevent Pre-Detonation
  • Requires 1-1/4" Clearance Between The Intake Plenum And Engine Valley Cover


The 860 Performance Hard-Lined LSX Steam Vent Kit utilizes the front and rear steam ports on the passenger and driver side head, allowing water flow through the ports and back to the radiator. This design prevents built up steam pressure which is known to create a rise in cylinder temperatures on #7 & #8 cylinders, causing pre-detonation.

Requires at least 1-1/4" clearance between the intake plenum and engine valley cover.

Intake Examples:
Edelbrock Victor Jr
Edelbrock Super Victor
Edelbrock Pro-Flo
BTR Trinity 
CID Series
Mast Motorsports
Holley Single Plane Split Design
Holley Hi-Ram
Texas Speed Titan Series
Holley Snipper
Performance Design
Stock Plastic Gen 3 Truck