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Old 12-29-2007, 10:29 AM
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SBC Heads - Open Chamber or Closed Chamber

What is the difference and how can you tell them apart? Which is better for a racing application?

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Old 12-29-2007, 05:51 PM
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the difference is a boat anchor and a performer the closed chambers are the best. you can tell the difference by the chambers size, closed chambers uselly have a quench area( flat spot) by the spark plug area leading into the head surface.
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