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Old Apr 20, 2015 | 12:02 AM
  #1  
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Intake manifold

I am Installing a aluminum intake on my 390
Do I need the valley pan or will it be fine with out it
 
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Old Apr 20, 2015 | 01:53 AM
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You need it, it's a critical part..

That being said, the intakes can be tricky to get to seal without leaking. Make sure you follow the torque spec and sequence properly (It might be different with aluminium).
 
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Old Apr 20, 2015 | 12:50 PM
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The valley pan will keep hot oil from splashing all over the bottom of the intake and since your new intake is aluminum will be even more so important.
 
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Old Apr 20, 2015 | 01:25 PM
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It was engineered with a valley pan.. must be important, right?

Dimple the China walls so the RTV has "feet" to grab hold of.

... and before torqueing down the intake (like 25 ft.lbs. IIRC), align it by installing and seating the distributor.
 
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Old Apr 20, 2015 | 08:59 PM
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You might want to call the tech line on your intake and check with them.
 
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