Features:

• Compatible with Holley LS Hi-Ram, Holley Single Plane, and Sniper Fabricated Intake Manifolds for GM LS Engines
• Prevents Hot Spots and Overheating by Eliminating Trapped Air in your Cooling System
• Four Corner Flow allows Steam and Coolant to transfer from Front to Back of the Cylinder Heads
• Corrosion-Resistant Custom Stainless Steel Hard Lines and Black Aluminum Anodized Components
• Easy bolt-on installation with (2) Earl's Adjustable Pivoting Steam Vent Adapters 361-LS9807 (sold separately)

Note:
Outlet hose attachment may require radiator or water pump modifications.