i bought a 92 ej22 at a yard for like 200 bucks with 178k on it so i replaced hg s with fel-pro and old ones looked good, i torqued to spec and cleaned block and head well, i put altogether and put in my rx as a swap and had a gutted thermostat for 1500mi then decided to get one which was a oriellys one, now i just found out to only use subaru ones. It was staying good temp with working fan, 50 miles later it then suddenly got very hot and blew the hg with steam out the oil fill tube and blowing all coolant into overflow. I did this swap to avoid these issues. Could just using non-subaru thermostats cause this, any is there any special tricks while doing hg s, or? , its sad my ea82t that was abused held up longer:(