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#474115
KB Ford 302 Hypereutectic Pistons, Flat Top, 5.09 Rod
$454.90
/set
In Stock
$561.60
Save $106.70
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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 |
Need To Know
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Details
Keith Black Hypereutectic pistons are T-6 heat treated and offer reduced scuffing and improved durability over stock replacement pistons. They also allow you to run tighter clearances because of reduced thermal expansion, which means more race winning power.
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
For Ford 302 c.i. (4.00" bore x 3.00" stroke). Use piston ring Style A (5/64", 5/64", 3/16").
Item Details
C/R 64cc: 9.0, C/R 69cc: 8.5Bore and Stroke: 4.00" x 3.00"
Rod Length: 5.09" Ring Style: A
Charts
474-115 Instructions (PDF)
Ring Style Chart (GIF)
Specs
- Pin Diameter: .912"
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 | 3.000" |
| Connecting Rod Length | 5.090" |
| Piston Weight | 570 grams |
| Piston Ring Style | A |
| Wrist Pin Diameter | 0.9120" |
| Wrist Pin Weight | 143 grams |
| Top Ring Thickness | 5/64" |
| Second Ring Thickness | 5/64" |
| Oil Ring Thickness | 3/16" |
| Compression 64cc = | 9.0 : 1 |
| GTIN Code | Select Oversize to see |
| Notes | Set includes a quantity of 8 pistons. |
| Sold in Quantity | Set |
Ratings & Reviews
5
2 Reviews
Customers are extremely pleased with the product, particularly commending its high quality and excellent performance. Its practicality and usability are highlighted in many reviews, with recommendations stating it is a superior choice in comparison to competitors. Customers would also purchase the product again, reflecting positively on its durability and overall satisfaction.
Ratings & Reviews
5
2 Reviews
Customers are extremely pleased with the product, particularly commending its high quality and excellent performance. Its practicality and usability are highlighted in many reviews, with recommendations stating it is a superior choice in comparison to competitors. Customers would also purchase the product again, reflecting positively on its durability and overall satisfaction.
5
2 reviews
5
2
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5.0
a year ago
Cobra 2 Girl
N.Wilkesboro N.C
Verified
Arrived fast very pleased
Would Recommend
Would buy it again
5.0
6 years ago
Diamond miner
Yellowknife Canada
Verified
Works great good quality
Would Recommend
Showing 2 of 2 reviews
Questions & Answers
Questions & Answers
7 Questions • 7 Answers
What is the compression height of these pistons? Looking for 1.605.
by 84 1/2 gt350
• 3 years ago
1 answer
View Answer
can you run over sized valves with these pistons ? my valve size is 1.94 and 1.60 . my current pistons would have to be fly cut for clearance.
by kenny
• 7 years ago
1 answer
View Answer
Are these pistons capable for supercharger applications... And what's the rated horsepower these may handle.... Handle detonation at all?? Just trying to see the strength of these... Thanks again Speedway for peace of mind and great products
by Charles McCormick
• 8 years ago
1 answer
View Answer
What is the cc volume of the valve reliefs? I have a 289 with 4.0" bore, 2.87 stroke with 59 cc chamber heads. Can assume .016 deck clearance and .03 compressed head gasket thickness. Looking for 9.5:1 to 10:1 ratio but need to know valve relief size for most accurate estimate.
by twal
• 10 years ago
1 answer
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What rings would you recommend with these?
by Dustin
• 10 years ago
1 answer
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Using this piston with the Flo Tek aluminum head #7223000 with 58cc chambers, what would the compression ratio come out to? By the way, thank you and Speedway for this great Q & A service!!!
by Tim
• 10 years ago
1 answer
View Answer
Is this one for pressed or bushed rod bolt?
by
• 14 years ago
1 answer
View Answer
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