2008-2010 Powerstroke 6.4L Mahle PowerPak Cast Piston & Ring Set w/ Valve Pockets - 0.010" Over (197886976)
This set of eight cast aluminum pistons uses a heavy-duty version of the factory bowl and a 0.010" reduction in compression height. The crowns have 0.100" deep valve pockets. Mahle rates this 3.876" bore combination at 14.8:1 with 0.008" piston protrusion and a 0.059" head gasket.
Includes
- Eight cast aluminum pistons
- Mahle ring set S42246
Specifications:
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Part number: 197886976
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Application / piston design: Ford 6.4L Powerstroke Cast Performance Pistons - w/ 0.100" deep valve pockets
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Displacement: 390 cu. in.
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Bore: 3.876 in.
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Stroke: 4.134 in.
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Rod length: 6.929 in.
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Compression height: 2.049 in.
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Pin diameter: 1.516 in.
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Crown volume: -45.1cc
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Piston weight: TBD
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Compression ratio: 14.8:1
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Piston alloy / material: M142
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Clearance measuring point: 0.610 in.
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Minimum clearance: 0.0021 in.
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Maximum clearance: 0.0029 in.
CH reduced 0.010", HD modified version of the factory bowl for reduced CR - Ring Set (S42246) Included
CR calculated with 0.008" piston protrusion above deck and 0.059" head gasket thickness (2.9cc, as listed in the catalog)
Set of 8 pistons with Mahle S42246 rings
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