04-06-2008, 11:08 AM
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CC Member
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Join Date: Feb 2007
Location: Colorado Springs,
CO
Cobra Make, Engine: Backdraft, supercharged Coyote
Posts: 2,455
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Not Ranked
One of the biggest problems is a port size mismatch. Most heads on the market have port sizes comperable to stock heads. Not the same, comperable. Getting a gasket to fit the heads is prett easy.
But, sometimes the header ports are huge. This is a problem with FFR headers. You have to buy a gasket that fits the headers, not the heads. And, use the silicone.
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