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Diamond 40709 Big Block Ford 385 Series Race Dome Pistons 12.5cc, 4.625" Bore, 4.150" Stroke, 6.800" Rod, 1.420" CD, .990" x 2.930 Pin
* Whole number only
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Manufacturer: Diamond Racing Products
Part No.: 40709
Compression Ratios
91cc
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83cc
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78cc
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13.4:1
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14.6:1
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15.4:1
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Part Number
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40709
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Bore
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4.625"
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Stroke
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4.150"
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Rod Length
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6.800"
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Comp. Height
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1.420"
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Wrist Pin
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.990" x 2.930"
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Top Ring Down
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.350"
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Piston Material
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2618 Alloy
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Piston Style
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Dome
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Volume
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12.5cc
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Ring Stack
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.043" x .043" x 3/16"
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Available Options
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