Head gasket
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====Steel shim head gasket==== | ====Steel shim head gasket==== | ||
Steel shim head gaskets are exactly what the name implies, simply a thin sheet of embossed steel with no sealers applied. Steel shim gaskets rely on the combination of increased localized pressure from the embossing (stamped ridges) much like MLS head gaskets, with the addition of a user applied sealant to insure liquid tight operation. | Steel shim head gaskets are exactly what the name implies, simply a thin sheet of embossed steel with no sealers applied. Steel shim gaskets rely on the combination of increased localized pressure from the embossing (stamped ridges) much like MLS head gaskets, with the addition of a user applied sealant to insure liquid tight operation. | ||
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| + | ====Graphite head gasket==== | ||
| + | Graphite head gaskets are good for aluminum heads when used on an iron block. Graphite is excellent in handling high temperatures and is anisotropic (draws heat away from hot spots). It also seals very well too. Some drawbacks to using graphite is that it cannot withstand exposure to oil over a over a long period of time, can be crushed and extruded, and it also leaves a coating on the block and heads that is harder to remove than traditional head gaskets. | ||
===Aluminum cylinder heads=== | ===Aluminum cylinder heads=== | ||
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