KB Ford 347 Hypereutectic Pistons, Flat Top, 5.4 Rod
347 Ford Small Block V8, Flat Top w/ 2 valve reliefs Piston Style, 3.400" Stroke
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 DetailsC/R 64cc: 10.0, C/R 69cc: 9.5
Bore and Stroke: 4.00" x 3.40"
Rod Length: 5.400" Ring Style: C
- Pin Diameter: .927"
474-246 Instructions (PDF)
Ring Style Chart (GIF)
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Q & A
Check out this helpful piston ring style chart.
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