Install dry.
If you use many sealers here then will cause problems.
Should be Blue over Metal.
the small groove between #4 intake and coolant port is a "Wall" to prevent coolant being suck by 4#.
Others are rubber over metal and don't have this "Wall."
Note that torque spec is for Clean Dry hardware and holes except holes get thru and see coolant or oil.
Those bolts need sealer and get a different torque.
If you don't follow this then you can over tighten cause problems like broken bolts or strip holes.
Many others install bolts under torque and cause vacuum again and often soon.
Spec is inch pounds not foot pounds that most people have on torque wrench.
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Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)
The Ogre's Fiero Cave
