The valves operate in low-temperature cryogenic conditions and to 1,000°F. They feature a patented seat made from self-lubricated, full-contact sintered stainless steel that contains TFE or graphite.
During one of our never-ending technical discussions, Jim Grubbs at Jim Grubbs Motorsports (JGM) suggested that we take a look at the flow difference between 30- and 45-degree valve seats. While ...
The VGS-20 has gained popularity in motorcycle and automotive engine head work. Valve guide and seat machining systems once were dominant only in aftermarket stock engine-rebuild shops. However, today ...
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