What head gaskets?
Go to SDPC and look at the write up on the use of head gaskets. They tell you that 98 and some 99's had a small half moon shape on their heads that would not seal with the 02 gaskets unless you are using heads from a later model. Just use the right gaskets for your year. They are a tad bit thinner also I believe 98=.056 02=.060. Good luck!



