Excellent work. I would dread performing that task while engine still installed. You have some good patience.
One can go gasket-less between the egr spacer and throttle body if you are not using the egr coolant ports. Would just need to cap off the two ports so the idle wouldn't raise up because of that potential vacuum leak.
The stock egr spacer also has a little "moat" so to speak that can handle a little bit of coolant if it so happens to escape the gaskets walls and route it either out the top corner or bottom corner between the egr spacer and throttle body. I forget which one to be exact.
A common practice after boring out a stock panther egr spacer is to place some JB weld into whats left of that moat....which is now basically a vacuum leak in and of itself because the boring process takes away one side of the moat. You have a direct path from the outside to the intake if it is not somehow blocked off.
It also helps to put the JB weld in there after a bore job so coolant does not enter and drip into the intake as well.
One can go gasket-less between the egr spacer and throttle body if you are not using the egr coolant ports. Would just need to cap off the two ports so the idle wouldn't raise up because of that potential vacuum leak.
The stock egr spacer also has a little "moat" so to speak that can handle a little bit of coolant if it so happens to escape the gaskets walls and route it either out the top corner or bottom corner between the egr spacer and throttle body. I forget which one to be exact.
A common practice after boring out a stock panther egr spacer is to place some JB weld into whats left of that moat....which is now basically a vacuum leak in and of itself because the boring process takes away one side of the moat. You have a direct path from the outside to the intake if it is not somehow blocked off.
It also helps to put the JB weld in there after a bore job so coolant does not enter and drip into the intake as well.
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