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Power Strokes
6.0 Aftermarket
are O-rings mandatory for me?
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[QUOTE="KCTurbos, post: 1246944, member: 13852"] Fire ringing and oring heads is not determined by any type of mahcine work. Head, block, it does to matter. Both styles can go anywhere. What defines oring vs firing is whether or not the ring is "squishing" the gastekt or taking the place of the gasket. Orings apply more pressure to the "fire ring" area of the existing gasket. Fire rings actually take the place of the "fire ring" area of the gasket... so it has to be removed from the existing gasket. Orings can be stuck in the head, block, both or none. It just applies extra pressure to the needed area of the gasket. They are also usually much thinner. Metal on gasket material. Fire rings can be stuck in the head, block, both or none. You cut out the fire ring area of the gasket and use the fire ring to seal the combustion area. Metal on Metal. [/QUOTE]
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Power Strokes
6.0 Aftermarket
are O-rings mandatory for me?
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