Attributes

Key Value
Bore (in.)4.155 in.
Bore (mm)105.537mm
BrandDSS Racing
Compression Height (in.)1.115 in.
Engine Stroke TypeStock
File FitNo
GaplessNo
Manufacturer's Part.K1-2921-4155
NotesFeatures 4032 alloy.
Oil Ring MaterialStainless steel
Oil Ring TensionStandard
Oil Ring Thickness3.0mm
Part TypePistons
Pin Diameter (in.)0.927 in.
Piston Head Volume (cc)+10.00cc
Piston MaterialForged aluminum
Piston Ring Thickness1.20mm x 1.20mm x 3.00mm
Piston Rings IncludedYes
Piston StyleDish, with two valve re.
Product LineD.S.S. FX-Series Forged.
QuantitySold as a set of 8.
Rod Length6.125 in.
Second Ring Facing Mate.Iron
Second Ring MaterialIron
Second Ring Thickness1.2mm
Stroke4.000 in.
Summit Racing Part Numb.DMS-K1-2921-4155
Top Ring Facing MaterialGas nitrided
Top Ring MaterialSteel
Top Ring Thickness1.2mm
Wrist Pin IncludedYes
Wrist Pin Retainers Inc.Yes
Wrist Pin StyleFloating
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