Specialty Engine Components has modified transmission valve designs that utilize aluminum having a hard and lubricous electro-chemically treated surface known as "hardcoat." The company has developed high-precision manufacturing processes to accommodate the unusual properties of this advanced material, and today is the world leader in the use of hardcoated technology.
Hardcoated aluminum transmission valves are designed to improve the efficiency of automatic transmissions. By matching the thermal expansion rate of the valve body, these valves reduce leakage or blow by, thereby increasing horsepower to the powertrain. For this reason, they are quickly replacing valves made of more traditional materials, such as steel, as the valve choice among automakers and suppliers.
After 60,000-mile endurance testing, SEC hardcoated aluminum transmission valves are indistinguishable from new parts. Steel valves subjected to the same testing are worn and, in some cases, unserviceable. This increased durability is one factor that has contributed to the extension of powertrain warranties offered by automotive manufacturers.
Hardcoated aluminum transmission valves manufactured by SEC offer several advantages over other valves:
- Increased efficiency
- Improved durability
- Light weight
- Inherently clean
- Highly lubricous
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