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#474123
KB Chevy 383 Hypereutectic Pistons, .150 Dome, 6.0 Rod
$374.99
set
In Stock
$465.99
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Key Specs
| MFG. Part # | Select Oversize |
| Piston Style | Dome |
| Piston Material | Hypereutectic Aluminum |
| Wrist Pin Included | Yes |
| Wrist Pin Style | Press-Fit or Floating |
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Details
Keith Black Hypereutectic 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 S/B Chevy 383 c.i. (4.000" bore x 3.75" stroke).
Item Details
C/R 58=13.4, 64cc=12.3, 76cc=10.7Piston/Pin Weight: 450 g
Rod Length: 6.0", Ring Style: C
Charts
474-123 Instructions (PDF)
Ring Style Chart (GIF)
Specs
- Comp Height 5.7" Rod - 1.433
- Comp Height 6.0" Rod - 1.13
- Pin Diameter - 0.9272
Specifications
Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | Select Oversize to see |
| Brand | Keith Black |
| Piston Style | Dome |
| Piston Material | Hypereutectic Aluminum |
| Wrist Pin Included | Yes |
| Wrist Pin Style | Press-Fit or Floating |
| GENERAL | |
| Piston Diameter | Select Oversize to see |
| Dome Height | .150" |
| Stroke | 3.750" |
| Connecting Rod Length | 6.000" |
| Piston Weight | 450 grams |
| Piston Ring Style | C |
| Wrist Pin Diameter | 0.9272" |
| Wrist Pin Weight | 145 grams |
| Compression 58cc = | 13.4 : 1 |
| GTIN Code | Select Oversize to see |
| Sold in Quantity | Set |