Those look like what Rob has on his stroker motor. I may try some of thos in the future.
I've been using copper gaskets and have minimal issues. They do excellent on the first couple of uses, but they start leaking a little after additional installs.
I haven't heard the leaks, but when I remove them, you can see some of the black where the exhaust was seeping out.
I wonder how good the Percy gaskets are at being reused.
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-Brian
'86 Mustang GT Convertible
'88 Mustang LX coupe
'11 Odyssey TE
'21 Insight Touring
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