Intake Manifold Gasket
December 16th, 2021, 10:28 AM
#1
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Intake Manifold Gasket
I'm finishing the build on my 455. I'm using an original W30 intake. I furnished my builder a steel valley pan gasket, but he is suggesting I locate a composite gasket with a steel liner. I'm striking out on finding it. Any comments or suggestions from those of you who have already been down this road?
December 16th, 2021, 12:25 PM
#3
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December 16th, 2021, 10:17 PM
#4
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Mr Gasket 404, fel pro also offers one.
The turkey tray gasket keeps got oil off the bottom of the manifold, and keeps the hot intake from cooking the oil that splashes up on the exhaust crossover.
As Joe mentioned, every Olds engine with a factory aluminum manifold used the turkey tray style gasket. I will also say the composite gasket is more forgiving of sloppy machine work.
If everything is machined correctly (flat, square, nothing milled excessively) the turkey tray should work fine.
The turkey tray gasket keeps got oil off the bottom of the manifold, and keeps the hot intake from cooking the oil that splashes up on the exhaust crossover.
As Joe mentioned, every Olds engine with a factory aluminum manifold used the turkey tray style gasket. I will also say the composite gasket is more forgiving of sloppy machine work.
If everything is machined correctly (flat, square, nothing milled excessively) the turkey tray should work fine.
December 17th, 2021, 06:02 AM
#5
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Location: Cartersville, GA
Posts: 649
Mr Gasket 404, fel pro also offers one.
The turkey tray gasket keeps got oil off the bottom of the manifold, and keeps the hot intake from cooking the oil that splashes up on the exhaust crossover.
As Joe mentioned, every Olds engine with a factory aluminum manifold used the turkey tray style gasket. I will also say the composite gasket is more forgiving of sloppy machine work.
If everything is machined correctly (flat, square, nothing milled excessively) the turkey tray should work fine.
The turkey tray gasket keeps got oil off the bottom of the manifold, and keeps the hot intake from cooking the oil that splashes up on the exhaust crossover.
As Joe mentioned, every Olds engine with a factory aluminum manifold used the turkey tray style gasket. I will also say the composite gasket is more forgiving of sloppy machine work.
If everything is machined correctly (flat, square, nothing milled excessively) the turkey tray should work fine.
December 30th, 2021, 06:59 AM
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December 30th, 2021, 03:21 PM
#9
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It’s better to use the turkey tray with the stock aluminum intake as far as I’m concerned.
the casting is very thin and will not tolerate a thick fiber gasket that will distort the intake when it’s torqued.
the problem is many of the factory intakes are cracked and twisted out of shape and have been eaten away at the water passages.
Best way to fit the intake is sit it on the engine with no gasket to see if it’s sitting flat along both heads, front to back with no rocking.
if it’s ok, your good to go with the turkey tray.
if it isn’t, you can’t tweek the intake a bit by using shims and torquing it down to twist it back to being flat…if it’s been welded like so many , you definitely need to check it on the heads first without a gasket
the casting is very thin and will not tolerate a thick fiber gasket that will distort the intake when it’s torqued.
the problem is many of the factory intakes are cracked and twisted out of shape and have been eaten away at the water passages.
Best way to fit the intake is sit it on the engine with no gasket to see if it’s sitting flat along both heads, front to back with no rocking.
if it’s ok, your good to go with the turkey tray.
if it isn’t, you can’t tweek the intake a bit by using shims and torquing it down to twist it back to being flat…if it’s been welded like so many , you definitely need to check it on the heads first without a gasket
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