Hello everyone! My 1991 L300 4D56 was overheating for some reason, so I took it to the Delica mechanic in town sadly to find out that exhaust fumes were found in the cooling system. Most likely the reason is due to a blown head gasket or possibly a cracked cylinder head. The repair is estimated to be around 7,000 US. I've been looking at other options including doing the work myself. I was curious if the Hyundai D4BF would be easier and have a little more bang for my buck instead of just the replacing the gasket or cylinder head. I have not worked on car engines before but this situation has forced me to consider doing it myself because of the cost of labor. I'm dedicated to fixing my Delica and would really appreciate your thoughts. Thanks.