#474120
KB Chevy 350 Hypereutectic Pistons, Flat Top, 5.7 Rod
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Keith Black1 Review
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4 Questions
- Will fit the S/B Chevy 350 c.i. (4.000" bore x 3.48" stroke) engine
- These pistons are favored for their improved power and reduced scuffing
- Manufactured from 390 Hypereutectic alloy and have fully machined crowns and valve reliefs
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$254.99
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Product Summary
350, Flat Top w/ 2 valve reliefs Piston Style
- Will fit the S/B Chevy 350 c.i. (4.000" bore x 3.48" stroke) engine
- These pistons are favored for their improved power and reduced scuffing
- Manufactured from 390 Hypereutectic alloy and have fully machined crowns and valve reliefs
- The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal
- Pistons are heat treated and offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by
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Key Specs
MFG. Part # | Select Oversize |
Piston Style | Flat Top w/ 2 valve reliefs |
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.
For S/B Chevy 350 c.i. (4.000" bore x 3.48" stroke).
- 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
Item Details
C/R 58cc=10.9, 64cc=10.2, 76cc=8.9Piston/Pin Weight: 680 g
Rod Length: 5.7", Ring Style: A
Charts
474-120 Instructions (PDF)
Ring Style Chart (GIF)
Specs
- Comp Height 5.7" Rod - 1.561
- Comp Height 6.0" Rod - 1.261
- Pin Diameter - 0.9272
CARB Warning
For race/ off road use only
CARB Warning
For race/ off road use only
Specifications
Specifications
KEY SPECS | |
---|---|
MFG. Part # | Select Oversize to see |
Brand | Keith Black |
Piston Style | Flat Top w/ 2 valve reliefs |
Piston Material | Hypereutectic Aluminum |
Wrist Pin Included | Yes |
Wrist Pin Style | Press-Fit or Floating |
GENERAL | |
Piston Diameter | Select Oversize to see |
Stroke | 3.480" |
Connecting Rod Length | 5.700" |
Piston Weight | 535 grams |
Piston Ring Style | A |
Wrist Pin Diameter | 0.9272" |
Wrist Pin Weight | 145 grams |
Compression 58cc = | 10.9 : 1 |
Compression 64cc = | 10.2 : 1 |
Compression 76cc = | 8.9 : 1 |
GTIN Code | Select Oversize to see |
Sold in Quantity | Set |