03-21-2012, 11:38 AM
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CC Member
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Join Date: Jul 2008
Location: Driftwood,
TX
Cobra Make, Engine: Contemporary Cobra, 427 side oiler
Posts: 1,850
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Not Ranked
Quote:
Originally Posted by chomama1
Mine does this too, I thought is was normal. So, consensus is it's the header flanges do not fit flat up against the block? Or timing or too lean? Not sure who Steve is or how flanges would work. Are we talking about exhaust leak at the header gasket?? Is this a gasket problem or a metal problem?
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The consensus is its an extreme lean condition caused by an exhaust leak, either at the headers or in the case of some of our Hurricanes, leaks at the slip-fits. If its at the header face, it could be the header flange or the gasket, depends on the car and condition.
Steve is Steve Sinnard, GM at Hurricane and the guy that supplies the flanges to convert Hurricane slip-fits to flanged setups. That requires you to be using their side pipes and cutting and welding the flanges into place on both the header and side pipe.
Regardless of the cause, backfiring or popping out the exhaust is not normal. |
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