Copper Collector Gaskets 3.5"
Copper collector gaskets are the answer to help prevent persistent leakage at the header collector.
Unlike composition fiber or combination fiber and metal gaskets, copper expands and contracts with the temperature of your cylinder heads. Since copper is soft, it compresses to form a better seal to begin with, and it won't burn out! Copper gaskets have been used in aviation applications for years, and now they're available for automotive use with your Sanderson headers.
Our collector gaskets are manufactured from 0.062" thick dead soft copper, and can be annealed to return them to their original thickness. In other words, "They Are The Last Gaskets You Will Ever Need To Buy!"