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Original Message
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| Good idea! |
| By Kevin66 - 04/28/2002 8:16:36 PM; IP 207.102.191.65 |
There's differing opinions on its importance. It's primarily there as a shield, but not everyone's aware it works two ways.
It acts to keep oil splash off the bottom of the intake manifold, so oil residue doesn't bake onto the heat riser passages, and also so the plenum/port runners don't pick up heat from the hot engine oil.
At the same time, it helps prevents the heat from the exhaust crossover passage from 'baking' oil film on the block valley areas.
Most factory manifolds used a rivet-on shield on the bottom, along with this valley baffle. Most aftermarket intakes don't, so probably rely more than ever on the baffle plate being there. |
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This thread, so far...
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