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Diamond Pistons Big Block 20 Degree Competition Series Pistons 21012-R1
Part Number: DPP-21012-R1
Diamond Pistons Big Block 20 Degree Competition Series Pistons
BBC Comp Series SR20 4.600B/1.120CD/R1
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Overview
Brand:
Manufacturer's Part Number:
21012-R1
Part Type:
Product Line:
Summit Racing Part Number:
DPP-21012-R1
UPC:
193564387066
Piston Rings Included:
Yes
Bore (in.):
4.600 in.
Bore (mm):
116.840mm
Stroke:
4.750 in.
Engine Stroke Type:
Stroked
Actual Engine Displacement:
10.3L/632
Rod Length:
6.700 in.
Piston Style:
Dome, with single valve relief
Piston Material:
Forged aluminum
Compression Height (in.):
1.120 in.
Piston Head Volume (cc):
-23.00cc
Wrist Pin Style:
Floating
Wrist Pin Retainers Included:
Yes
Wrist Pin Included:
Yes
Pin Diameter (in.):
0.990 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:
Steel
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:
Designed for use with Brodix SR20 and Dart 20 degree cylinder heads. Piston is 2618 material. Includes H-13 wrist pins and oil rail supports.
Diamond Pistons Big Block 20 Degree Competition Series Pistons
Diamond Pistons Big Block 20 Degree Competition Series pistons are available for a variety of applications—including many Chevrolet V-8 engines from 1965-90. Forged from aluminum with single valve relief, these dome-style pistons are offered in different bore, stroke, and rod length sizes—along with several other options. They're designed for use with Brodix SR20 and Dart 20 degree cylinder heads.
Additional details:
* Forced pin oilers from the oil ring
* Pin fitted
* Vertical gas ports
* Moly coated skirts
* 3-D dome and pockets
* Inboard forging
* H-13 pins, support rails and locks included
Applications
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