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.

Notes: 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  All-Pro CID Series Mast Motorsports Holley Single Plane Split Design Holley Hi-Ram Texas Speed Titan Series Texas Speed Sheet Metal Series Holley Snipper Performance Design Stock Plastic Gen 3 Truck