$121 Off
$121 Off
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#474195
KB Chevy 377 Hypereutectic Pistons, .150 Dome, 6.0 Rod
$516.83
/set
In Stock
$638.06
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Key Specs
| MFG. Part # | Select Oversize |
| Brand | Keith Black |
| Piston Style | Dome |
| Piston Material | Hypereutectic Aluminum |
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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 377 c.i. (4.125" bore x 3.48" stroke).
Item Details
C/R 58cc=13.2, 64cc=12.1, 76cc=10.5Piston Weight: 525 g
Rod Length: 6.0", Ring Style: C
Charts
474-350 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 or for use on pre-1966 vehicles.
CARB Warning
For race/ off road use or for use on pre-1966 vehicles.
Specifications
Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | Select Oversize to see |
| Brand | Keith Black |
| Piston Style | Dome |
| Piston Material | Hypereutectic Aluminum |
| GENERAL | |
| Piston Diameter | Select Oversize to see |
| Dome Height | .150" |
| Stroke | 3.480" |
| Connecting Rod Length | 6.000" |
| Piston Weight | 525 grams |
| Piston Ring Style | C |
| Wrist Pin Diameter | 0.9272" |
| Wrist Pin Weight | 145 grams |
| Top Ring Thickness | 1/16" |
| Second Ring Thickness | 1/16" |
| Oil Ring Thickness | 3/16" |
| Compression 58cc = | 13.2 : 1 |
| Compression 64cc = | 12.1 : 1 |
| Compression 76cc = | 10.5 : 1 |
| GTIN Code | Select Oversize to see |
| Sold in Quantity | Set |
Ratings & Reviews
4
1 Review
Ratings & Reviews
4
1 Review
4
1 reviews
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Great product for the price.
4.0
8 years ago
Len
South Carolina
Verified
Haven't finished the motor yet but examined the pistons really close. Well built product.
Would Recommend
Showing 1 of 1 reviews
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