Posted by Chris Case [108.162.215.96] on Tuesday, July 19, 2016 at 00:47:32 :
In Reply to: Re: Copperkote on head gaskets? posted by Vaughn [199.27.133.142] on Monday, July 18, 2016 at 22:40:36 :
From Felpro,via Vaughn's link:
"Lightly coat bolt threads and the underside of the bolt heads with EP grease or similar
lubricant. When they enter the water jackets of an engine, bolt threads should be coated with a non-hardening automotive sealer to prevent leakage. Refer to the manufacturer’s service manual or examine the engine to determine where the bolt holes lead."
EP= Extreme Pressure grease. Pretty common. Though I've always used engine oil.