[oldebondo]

Yes, the heads, like any aluminum heads are not as forgiving as cast Iron. I've overheated a Subaru and blew the head gasket. I overheared the Volvo 850 and blew the head gasket. I overheated my 67 Pontiac, pulled off the road, let it cool and drove the rest of the way home. Personally, I ain't a scared of nuthin 'cause I can fix just about anything. When I re-did the head on the 850, I learned a lot about how the thing works and I was able to do a lot of maintenance while I was putting the engine back together. I was lucky because I had the time. Don't be afraid of an 850, I believe they are awesome cars.