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Diamond 11820 Small Block 400 Chevrolet - Nitrous - Dome Pistons, 4.5cc, 4.155" Bore, 4.000" Stroke, 6.000" Rod, 1.000" CD, .927" x 2.950" Pin
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* Whole number only
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Manufacturer: Diamond Racing Products
Part No.: 11820
Compression Ratios
| 58cc
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64cc
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72cc
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| 14.8:1
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13.6:1
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12.4:1
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* Includes Oil Rail Supports
Part Number
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11820
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Bore
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4.155"
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Stroke
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4.000"
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Rod Length
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6.000"
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Comp. Height
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1.000"
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Wrist Pin
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.927" x 2.950"
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| Top Ring Down
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.250" - .300"
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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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4.5cc
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Ring Stack
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.043" x .043" x 3/16"
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Includes Top Gas Ports and
H-13 Tool Steel Wrist Pins
Available Options
- Moly Skirt Coating
- Ceramic Dome Coating
- Hard Anodized Coating
- Double Diamond Coating (Hard Anodized and Moly Skirt)
Recommended Piston Ring Set- 09244155
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