Join Date: Aug 1998
Location: Waldorf Md. USA
Make certain that your mechanic has all the bulletins in front of him on replacing the head gaskets on that engine. This is probably not one for the local do it yourselfer. They have a lot of problems with the head bolts stripping out in the block. GM makes a repair kit with all new bolts and helicoils. Most of my shop customers automatically put in the kit every time they have the heads off one of those engines. Your machine shop should be an AERA member and can print out the bulletins for you.
As far as the coolant getting in the oil goes, its probably a 50-50 chance that it hurt anything. There are thousands of head gaskets changed on many different engines without doing bearings. It just depends on how long it was driven with the coolant in the oil.
Hope this helps,
Advanced Automotive Machine
1971 Chevelle "Heavy Chevy" original owner
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