KB Chevy 400 Hypereutectic Pistons, .100 Dome, 5.7 Rod
400 Chevy Small Block V8, Dome Piston Style, Hypereutectic Aluminum Piston Material
Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.
- 390 Hypereutectic alloy
- Fully machined crowns and valve reliefs
- Drilled oil drain backs
- Full floating wrist pins
- Triple wound spiral locks
- Reflective alloy allows 2% power increase
- Quench dome technology minimizes deterioration
- Zero deck quench designs
- Lightweight wrist pins
For Chevy 400 c.i. (4.125" bore x 3.75" stroke).
Ring Style Chart (GIF)
Item DetailsC/R 58cc=14.5, 64cc=13.3, 76cc=11.4
Piston Weight: 583 g
Rod Length: 5.7", Ring Style: A
- Comp Height 5.565" Rod - 1.561
- Comp Height 5.7" Rod - 1.433
- Comp Height 6.0" Rod - 1.13
- Pin Diameter - 0.9272
474-127 Instructions (PDF)
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