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Marc Haibeck · 02-12-2012

Hi Lee,

The OE gaskets work well up to 650 hp if the engine does not detonate excessively or overheat. A wire ring can help lock the OE gasket in place. However the modern solution is to use a MLS head gasket. It’s easier to install MLS gaskets than to modify the cylinder heads.

The OE gasket crushes to fit. It does not rebound much when the clamping force is increased and then reduced. A MLS gasket will spring back if it is over-clamped on a hot engine. We use MLS head gaskets on all of our assemblies.

Still the fundamental problem of overheating should be addressed directly. Head gaskets are easy to replace compared to other damage that an overheating engine might sustain.

02-12-2012	#10
Marc Haibeck Join Date: May 2007 Location: Addison IL Posts: 254	Re: Dyno Pull yesterday (OBX Headers) Hi Lee, The OE gaskets work well up to 650 hp if the engine does not detonate excessively or overheat. A wire ring can help lock the OE gasket in place. However the modern solution is to use a MLS head gasket. It’s easier to install MLS gaskets than to modify the cylinder heads. The OE gasket crushes to fit. It does not rebound much when the clamping force is increased and then reduced. A MLS gasket will spring back if it is over-clamped on a hot engine. We use MLS head gaskets on all of our assemblies. Still the fundamental problem of overheating should be addressed directly. Head gaskets are easy to replace compared to other damage that an overheating engine might sustain.