Header design
From Crankshaft Coalition Wiki
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==Introduction== | ==Introduction== | ||
To some, a header is just a bunch of tubes that connect the exhaust port to the rest of the exhaust system. To the more mechanically curious, it is a system of tuned length and diameter tubes connecting to a device which amplifies and optimizes the wavelength of the exhaust, effectively sucking burnt gases out of the engine's cylinders. | To some, a header is just a bunch of tubes that connect the exhaust port to the rest of the exhaust system. To the more mechanically curious, it is a system of tuned length and diameter tubes connecting to a device which amplifies and optimizes the wavelength of the exhaust, effectively sucking burnt gases out of the engine's cylinders. | ||
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There are many different types and sizes of header gaskets on the market today. Composite are common, as is fiber types. The composite gaskets seem to hold up a little better, all else being equal, but the main thing is to retighten the header bolts often- like every time the engine is heat cycled- until the fasteners take a set. | There are many different types and sizes of header gaskets on the market today. Composite are common, as is fiber types. The composite gaskets seem to hold up a little better, all else being equal, but the main thing is to retighten the header bolts often- like every time the engine is heat cycled- until the fasteners take a set. | ||
| − | [[File:Foil exh gasket sbc1. | + | [[File:Foil exh gasket sbc1.jRemember- keeping the bolts tight is very important to keeping the gaskets from burning out. |
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For the SBC and any other engine that uses these gaskets as a stock replacement: If/when the gaskets take a dump, try a set of the foil backed composite gaskets that come in most rebuild gasket sets. If they'll fit the head and header ports, they will work as good as most any more expensive composite gasket if the bolts are kept tight. | For the SBC and any other engine that uses these gaskets as a stock replacement: If/when the gaskets take a dump, try a set of the foil backed composite gaskets that come in most rebuild gasket sets. If they'll fit the head and header ports, they will work as good as most any more expensive composite gasket if the bolts are kept tight. | ||
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==See also== | ==See also== | ||
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