Think I installed a head gasket backwards.
If GM MLS it is really easily diagnose. Look at the tab that sticks out from between the block and head. The tab should be between the first and second head bolt hole. If it is there you are OK, If it is between the 3-4 you have it backwards.
Last edited by 8.Lug; Jun 19, 2018 at 04:22 AM.






