Gas Porting Tool Kits

Virtually eliminate side ring clearance by drilling gas ports in piston ring lands with the help of Goodson's Gas Porting Tool Kits. These ports apply compression pressure directly to the back of the ring pushing it against the cylinder wall with greater force while minimizing compression leakage. Gas ports work best with piston-compression heights of 1.2" or less on engines running at 7,000 rpm or higher. The complete kit includes a drill fixture, depth bushing and one drill bit.

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