Intake valley pan
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Fleet Mechanic
Joined: Aug 2004
Posts: 1,311
Likes: 31
From: Nevada
Intake valley pan
Who the what the ? You know that feeling when you realized you forgot a part or have some left over ? I started seeing pics of the intake valley pan on other builds and websites 
..... And I asked myself "Self, what the hell is that ?" I never took one out of the motor, and I usually don't drink (heavily) when im working on it, so I don't get things mismatched or misplaced 
. And I don't recall seeing that in the Haynes book ? So did my original 360 turned 390 have one ? Sounds like fellas take it out on rebuild, but does it make the head and intake more prone to gasket failure or seeping ? Cuz I have the heads back on, and really like how they turned out.... Soooooooo if I don't need it...
..... And I asked myself "Self, what the hell is that ?" I never took one out of the motor, and I usually don't drink (heavily) when im working on it, so I don't get things mismatched or misplaced . And I don't recall seeing that in the Haynes book ? So did my original 360 turned 390 have one ? Sounds like fellas take it out on rebuild, but does it make the head and intake more prone to gasket failure or seeping ? Cuz I have the heads back on, and really like how they turned out.... Soooooooo if I don't need it...
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
What the FE's have is a baffle that sits in the valley. It's purpose is to keep oil off of the very hot exhaust crossover section of the intake manifold.
If you have an aftermarket manifold without the crossover passage or are running headers you can get by without it, but, in this case, it also serves to help keep hot oil off the bottom of the intake.
If you have an aftermarket manifold without the crossover passage or are running headers you can get by without it, but, in this case, it also serves to help keep hot oil off the bottom of the intake.
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Fleet Mechanic
Joined: Aug 2004
Posts: 1,311
Likes: 31
From: Nevada
I see....
Well, im running a Edlebrock Performa 390 intake with no exposed exhaust crossover..... However if I was to rewind the tape, I would have found one of these and installed it, I like the idea of keeping the oil splash under control, seeing my block looked like it had been dipped in a 50 gal drum of dirty motor oil when I pulled it 
Posting Guru
Joined: Jan 2005
Posts: 1,051
Likes: 0
From: Douglas, Georgia
The pan serves two purposes.
first as mentioned, it keeps hot oil off the intake (which is handy even without an exhaust crossover).
The other reason is the early engines had draft tubes/pcv's in the rear of the intake. Keeping oil from splashing on the basket keeps the oil in the engine.
back of intake basket:
first as mentioned, it keeps hot oil off the intake (which is handy even without an exhaust crossover).
The other reason is the early engines had draft tubes/pcv's in the rear of the intake. Keeping oil from splashing on the basket keeps the oil in the engine.
back of intake basket:
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