When do you need a thicker head gasket?
When do you need a thicker head gasket? A well-known fact when adding forced-induction to an engine originally designed for naturally-aspirated applications, is that it may be necessary to reduce the compression ratio to counter the increased risk of pre-ignition/detonation. A cost-effective way to do this is to use a thicker head gasket. What happens when a head gasket fails in an engine? The same failure can also cause exhaust gases to enter the oilways and pressurise the crankcase, causing lubrication issues and excessive engine wear. If a head gasket has failed between the waterway or oilway and the outside...