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#474164
KB Chevy 383 Hypereutectic Pistons, Dish, 6.0 Inch Rod
- Fits 383 C.I. small block Chevy's
- Made from 390 Hypereutectic alloy
- Full floating wrist pins
$438.87
/set
In Stock
$541.81
Save $102.94
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Product Summary
- Fits 383 C.I. small block Chevy's
- Made from 390 Hypereutectic alloy
- Full floating wrist pins
- Drilled oil drain backs
- Piston and pin only weigh 545 grams
Key Specs
| MFG. Part # | Select Size |
| Piston Style | Dish |
| Piston Material | Hypereutectic Aluminum |
| Wrist Pin Included | Yes |
| Wrist Pin Style | Press-Fit or Floating |
Need To Know
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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 383 c.i. (4.000" bore x 3.75" 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=10.2, 64cc=9.6, 76cc=8.6Piston/Pin Weight: 545 g
Rod Length: 6.0", Ring Style: C
Charts
474-164 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
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 Size to see |
| Brand | Keith Black |
| Piston Style | Dish |
| Piston Material | Hypereutectic Aluminum |
| Wrist Pin Included | Yes |
| Wrist Pin Style | Press-Fit or Floating |
| GENERAL | |
| Piston Diameter | Select Size to see |
| Stroke | 3.750" |
| Connecting Rod Length | 6.000" |
| Piston Weight | 411 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 = | 10.2 : 1 |
| Compression 64cc = | 9.6 : 1 |
| Compression 76cc = | 8.6 : 1 |
| GTIN Code | Select Size to see |
| Sold in Quantity | Set |
Ratings & Reviews
5
1 Review
Ratings & Reviews
5
1 Review
5
1 reviews
5
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I would buy it again
5.0
4 years ago
Al
Aztec NM
Verified
The balance weight was extremely close only off by 1 grain
Showing 1 of 1 reviews
Questions & Answers
Questions & Answers
1 Question • 1 Answer
WHAT IS THE RING THICKNESS DOES IT COME WITH A OIL RING SCRAPER FOR OPEN WRIST PIN BORE?
by TKB
• 2 years ago
1 answer
View Answer
1 of 1 questions shown
