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Old Aug 7, 2007 | 11:46 PM
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why is this?

Anyone know why edelbrock blocked off the two rear cooling passages on their performer intake manifold? I don't see what you could possibly gain from this but??? Thanks for your opinions guys.
 
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Old Aug 8, 2007 | 01:34 AM
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Edelbrock? That looks like a Ford part number on the top of the manifold. The bottom casting detail also looks very much like a stock manifold. Very interesting. Could you post a picture showing the entire top and entire bottom?

And no, sorry, I don't know why the rear cooling passage is blocked off. I understand that some manifolds have the rear crossover and some don't, I don't think it makes a lot of difference.
 
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Old Aug 8, 2007 | 09:03 AM
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My factory 96 Explorer GT-40 intake also has the rear ports blocked off. I'd say it only has rear ports on the heads since they can switch sides.
 
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Old Aug 8, 2007 | 10:13 PM
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None of the factory Ford intakes have a rear water crossover passage. It ain't needed anyway.
 
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Old Aug 10, 2007 | 08:04 AM
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Nope, they are just there to block the rear ports because the heads can be installed either way. And that's an OEM 67 or 77 car intake.
 
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