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I recently tore my engine down to the block because of a water/oil leak. I replaced head gaskets, intake manifold gaskets, and throttle body gaskets. I noticed when putting the intake manifold back together that there is a port in the back of the passenger side head that isn’t covered by my intake manifold and a bolt hole that nothing bolts to the head at.
here are a couple photos of the bottom of the manifold and the top of the head... I guess I don't understand how you can install the ORIGINAL manifold, and it does not cover all the ports ?
I thought it was weird too but there’s no other way for the manifold to be mounted. I guess I need to take the intake back off and then seal the hole with epoxy? I don’t understand why the head would have a port there with nothing on top to seal it off.
Because the heads can theoretically swap sides with additional machine work.
Instead of 2 different gaskets, they all make the same gasket for both sides.
If it was on the other side it would have the thermostat housing over it.
If they made 2 different gaskets there would probably be 50% of people on here wondering about the hole AND complaining that their thermostat housing leaks.
The hole doesn't go anywhere, it's just there.
It is supposed to be like that.
It isn't going to leak provided that you have torqued the intake bolts correctly.
Everyone freaks out the first time they see it, but that's just the way it is.