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Diamond Pistons Small Block 23 Degree Race Dome Series Pistons 11923
Part Number: DPP-11923
Diamond Pistons Small Block 23 Degree Race Dome Series Pistons
CH SB DM 4.040B/3.875S/6.000R/1.063CD N/
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Estimated Ship Date: Dec 7, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
11923
Part Type:
Product Line:
Summit Racing Part Number:
DPP-11923
UPC:
193564378613
Piston Rings Included:
Yes
Bore (in.):
4.040 in.
Bore (mm):
102.616mm
Stroke:
3.875 in.
Engine Stroke Type:
Stroked
Actual Engine Displacement:
6.5L/397
Rod Length:
6.000 in.
Piston Style:
Dome, with two valve reliefs
Piston Material:
Forged aluminum
Compression Height (in.):
1.063 in.
Piston Head Volume (cc):
-14.00cc
Wrist Pin Style:
Floating
Wrist Pin Retainers Included:
Yes
Wrist Pin Included:
Yes
Pin Diameter (in.):
0.927 in.
Piston Ring Thickness:
0.043 in. x 0.043 in. x 3.00mm
File Fit:
Yes
Gapless:
No
Top Ring Thickness:
0.043 in.
Top Ring Material:
Ductile iron
Top Ring Facing Material:
Plasma-moly
Second Ring Thickness:
0.043 in.
Second Ring Material:
Ductile iron
Second Ring Facing Material:
Ductile napier
Oil Ring Thickness:
3.0mm
Oil Ring Material:
Stainless steel
Oil Ring Tension:
Standard
Remanufactured:
No
Quantity:
Sold individually.
Notes:
Piston is 2618 material. Includes 4130 wrist pins and oil rail supports.
Diamond Pistons Small Block 23 Degree Race Dome Series Pistons
Diamond Pistons Small Block 23 Degree Race Dome Series pistons are available for a variety of applications, including many Chevy V8 Gen 1 engines from 1968-2001. Forged from aluminum with two valve reliefs, the dome-style pistons are offered in different bore and stroke sizes, along with numerous other options. Order individually or in a set of 8.
Additional details:
* 900 hp rated
* Forced pin oilers from the oil ring
* Pin fitted
* Later gas ports
* 3-D dome and pockets
* Pins, locks, and support rails (if required) included
Applications
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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