|
#474143
KB Chevy 305 Hypereutectic Pistons, Flat Top, 5.7 Rod
Starting from
$382.99
/set
In Stock
Quantity
Need Help? Call to Order
Add to a list
Select a vehicle to verify Fitment
Select Vehicle
Key Specs
| MFG. Part # | Select Size |
| Piston Style | Flat Top w/ 2 valve reliefs |
| Piston Material | Hypereutectic Aluminum |
| Wrist Pin Included | Yes |
| Wrist Pin Style | Press-Fit or Floating |
Need To Know
Need help?
855.313.9176Quick and Easy Returns
Return PolicyDetails
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 305 c.i. (3.736" 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=10.0, 64cc=9.3, 76cc=8.2Piston/Pin Weight: 615 g
Rod Length: 5.7", Ring Style: A
Charts
474-143 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 Size 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 Size to see |
| Stroke | 3.480" |
| Connecting Rod Length | 5.700" |
| Piston Weight | 470 grams |
| Piston Ring Style | A |
| Wrist Pin Diameter | 0.9272" |
| Wrist Pin Weight | 145 grams |
| Top Ring Thickness | 5/64" |
| Second Ring Thickness | 5/64" |
| Oil Ring Thickness | 3/16" |
| Compression 58cc = | 10.0 : 1 |
| Compression 64cc = | 9.3 : 1 |
| Compression 76cc = | 8.2 : 1 |
| GTIN Code | Select Size to see |
| Sold in Quantity | Set |
Ratings & Reviews
5
2 Reviews
Product reviews highlight the excellent quality and usability of our product, especially in engine builds. It proves ideal for customers working on specific projects, such as a Chevy 305, outperforming competitors in providing the required pistons. These features and its budget-friendly nature make it the favored choice, according to customers' recommendations.
Ratings & Reviews
5
2 Reviews
Product reviews highlight the excellent quality and usability of our product, especially in engine builds. It proves ideal for customers working on specific projects, such as a Chevy 305, outperforming competitors in providing the required pistons. These features and its budget-friendly nature make it the favored choice, according to customers' recommendations.
5
2 reviews
5
2
4
0
3
0
2
0
1
0
Filter by Ratings
This is a great produck
5.0
9 years ago
Slowturtle
Okeechobee, Fl.
Verified
Just right for my build. I wanted to build a Chevy 305, but finding the pistons was a job! A lot out there . These were just right for me. Thanks KB and Speedway
Would Recommend

Quality hidden by low price
5.0
10 years ago
Dalemo
Evansville, in
Verified
Building a budget minded racesaver engine and these fit the build nicely
Would Recommend
Showing 2 of 2 reviews
