What's this hole in my intake manifold for? (1 Viewer)

[mrjordann]

Engine is a 1973 1F. What's this hole for?

 

[JackA]

That's for a thru bolt that attaches to the stock exhaust manifold. It's fine as is. Does not connect to inside of intake.

 

[igotta40]

Dipstick tube. Your dipstick is missing?

 

[bikersmurf]

That's for a thru bolt that attaches to the stock exhaust manifold. It's fine as is. Does not connect to inside of intake.

X2

 

[mrjordann]

Dipstick tube. Your dipstick is missing?

No this is the intake manifold

 

[mrjordann]

That's for a thru bolt that attaches to the stock exhaust manifold. It's fine as is. Does not connect to inside of intake.

Shouldn't I plug it so it doesn't affect intake vacuum?

 

[Pighead]

Shouldn't I plug it so it doesn't affect intake vacuum?

That hole does not communicate with the interior of the intake manifold, it has no affect on vacuum.
Put a bolt thru it if you don't like looking at an empty hole.

 

[ToyotaMatt]

it's for this :