OversizedYes
Piston Head TypeFlat
Cylinder Bore Diameter4.25
Cylinder Bore Diameter108
Bore Diameter4.25
Bore Diameter108.0
Piston MaterialCast 390 Hypereutectic Alloy
Compression Height1.27
Compression Height32.3
Alloy390
Base NumberKB284
Bore (in)4.25
Bore (mm)108.0
Compression Ratio96.5-10.0, 105-9.5, 108-9.3, 119-8.6
Crown (cc)+3cc
Crown TypeFLAT TOP 1V
Eng. Disp Liters8.0
Eng. Disp. In.489
Engine FamilyChevrolet BB V8 Mark IV
Engine ManufacturerChevrolet
Intake Valve Depth/diameter.266/2.310
LockPRG110-3
Make For Engine FamilyGeneral Motors
Oe Deck Height9.8
Oversize.060
OversizesSTD .030 .040 .060 .070 .100
Pin ConfigurationCentered
Pin Diameter (in).990
Pin Diameter (mm)25.1
Pin Number0990x300K
Pin TypePress or Floating
Ring Pack1/16, 1/16, 3/16
Rod (in)6.385
Rod (mm)162.179
Sold AsPISTON SET
Stroke (in)4.25
Stroke (mm)108.0
Top Land.312
Package Information- package Level GTIN Number: 00800745063212
- Quantity in Package: 8