5/20/2011
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Company: Sealed Power/Federal-Mogul Corp.
www.sealedpowerpistons.com
Pistons for Chevy V6 Engines
Digital Diamond Profiling Allows Tolerances to Be Held With 16 Microns Across Entire Set
The popular new line of Sealed Power® Digital Diamond Profiled™ (DDP) pistons now includes several additional designs engineered for Chevrolet V6 engines.
Manufactured at Federal-Mogul’s world-class original equipment piston facility in South Bend, IN, Sealed Power DDP pistons incorporate dozens of advanced features to help customers achieve new levels of engine efficiency, performance and reliability. The Digital Diamond Profiling process maintains individual piston diameters to within 16 microns across each complete piston set, enabling engine builders to utilize uniform bore sizes for more efficient machining and improved performance.
Each Sealed Power DDP piston features sophisticated “barreled” top and bottom skirt profiles that compensate for thermal expansion and contraction, minimize wall contact and allow the piston to “roll” rather than “slap” within the cylinder, reducing noise. This unique profiling technology also helps optimize the oil wedge between the skirt and wall for exceptional durability under varying loads. In addition, these pistons feature Federal-Mogul’s exclusive Thermal Arching Compensation™ (TAC) technology, which comprises tightly controlled ring-groove up-tilt and machining consistency to reduce oil consumption, blow-by and emissions and help extend engine life.
Piston skirts are protected by Federal-Mogul’s next-generation DUROSHIELD® moly-graphite coating, which significantly reduces friction, noise, vibration and harshness across the entire RPM range.
Chevrolet V6 pistons now available through the Sealed Power DDP line are:
#H640ACP 4.3L GM Cars 1985 - 1990
4.3L GM Trucks 1985 - 1995
4.3L Mercury 1985 - 1991
#H645ACP 4.3L GM Cars 1985 - 1981
4.3L GM Trucks 1985 - 1991
#H699ACP 4.3L GM Trucks 1996 - 2005
Sealed Power DDT pistons are cast from Federal-Mogul’s exclusive FM 425 aluminum alloy, the same material used in some of today’s most powerful production engines. Featuring 16 percent silicon content, this material permits tighter piston-to-wall clearances for improved sealing, increased power and reduced operating noise.
For additional information regarding these new pistons and to download a complete listing of available applications, please visit
www.sealedpowerpistons.com or contact your engine parts provider.