Intake Gaskets

Good for you. Do those gaskets have the silicone around the water ports? You might be ok. Try it and see. If you see no outside leaks or any water mixing in on the dipstick, you're probably ok.

That's why I always do it regardless. Because if you get an inside leak into the intake valley, it does not take much to dilute the oil enough to spin a rod bearing.

That would suck.