Verify your engine's integrity with this essential leak test kit from Stage6.

A critical tool for any serious engine builder. Once your engine is assembled, this kit lets you confirm complete air-tightness before installation. A properly sealed engine block is fundamental to achieving maximum performance and ensuring accurate carburetor adjustment. Air leaks compromise both power output and tuning precision — prevention is always better than discovery after full assembly.

Avoid the frustration of installing a complete engine only to discover hidden leaks that force complete disassembly. With this diagnostic tool, you can catch problems before they become costly setbacks. For those who demand reliability, this is the solution. 

Included in the Stage6 leak test kit :

• 1x intake plug 25mm
• 1x intake plug 28mm
• 1x intake plug 35mm
• 1x intake plug 39mm
• 4x valves