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#474246
KB Ford 347 Hypereutectic Pistons, Flat Top, 5.4 Rod
- The reflective alloy allows 2% power increase
- Features fully machined crowns and valve reliefs
- Has drilled oil drain backs and full floating wrist pins
$418.99
/set
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Product Summary
Flat Top w/ 2 valve reliefs Piston Style, 3.400" Stroke
- The reflective alloy allows 2% power increase
- Features fully machined crowns and valve reliefs
- Has drilled oil drain backs and full floating wrist pins
- Specially quench dome technology minimizes deterioration
- Made entirely from 390 Hypereutectic alloy that weighs only 429 grams
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 347 c.i. (4.00" bore x 3.40" stroke). Use piston ring Style C (1/16", 1/16", 3/16").
Item Details
C/R 64cc: 10.0, C/R 69cc: 9.5Bore and Stroke: 4.00" x 3.40"
Rod Length: 5.400" Ring Style: C
Charts
474-246 Instructions (PDF)
Ring Style Chart (GIF)
Specs
- Pin Diameter: .927"
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 | 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 | 3.400" |
| Connecting Rod Length | 5.400" |
| Piston Weight | 429 grams |
| Piston Ring Style | C |
| Wrist Pin Diameter | 0.9272" |
| Wrist Pin Weight | 107 grams |
| Top Ring Thickness | 1/16" |
| Second Ring Thickness | 1/16" |
| Oil Ring Thickness | 3/16" |
| Compression 64cc = | 10.0 : 1 |
| GTIN Code | Select Oversize to see |
| Sold in Quantity | Set |
Ratings & Reviews
Ratings & Reviews
Questions & Answers
Questions & Answers
1 Question • 1 Answer
I find Ford KB 302/347 pistons(though I'm really interested in the stroker kit) on your web site, but I don't find Ford piston rings.
by Paul
• 14 years ago
1 answer
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