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71Chev · 04-24-2003, 01:44 PM

Use the copper or aluminum. I used aluminum, and my flanges are bent at each bolt hole. They sealed up great. Should never have to buy any more header collector gaskets!

04-24-2003, 01:44 PM	#2
71Chev Senior Member Join Date: Dec 2000 Location: Indiana Posts: 3,074	Use the copper or aluminum. I used aluminum, and my flanges are bent at each bolt hole. They sealed up great. Should never have to buy any more header collector gaskets! __________________ 71 Chevy CST Long Fleet 350/350/3.07 leaf rear.