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Diamond Racing Pistons - Big Chief/Big Duke Nitrous Series
Piston Features:
- 3D milling on piston crowns for ready to install finish
- Designed for use with Dart 18° Big Chief & Brodix 18° Big Duke cylinder heads
- Vertical gas ports for maximum ring seal
- Top ring down dimension: .325"
- Ratios figured for .040 head gasket @ 9.800 Deck & 10.200 Deck
- Premium ring package .043 x 1/16 x 3/16 ring package
- Part# 12765-12767 use premium .043 x .043 x 3/16 ring package
- Premium H-13 .205W wrist pins included
- Valve pocket depth: 0.315" intake and .068" exhaust
- Will work with up to a intake valve size of 2.400" and exhaust valve size of 1.950"
- Part# 12765-12767 will work with up to a intake valve size of 2.450"
- Made from 2618 alloy and designed for medium nitrous levels (Up To 450HP)
Swipe left or right on tables below to see more info.
Items 1-21 of 21
image | item no | bore | stroke | rod | comp height | pin | cc | compression ratio | ring thickness | cyl qty | msrp | buy |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 12750-8 | 4.500 | 4.250 | 6.385 | 1.270 | .990 x 2.930 | 13.0cc | 12.6 | .043 x 1/16 x 3/16 | 8 | $1928.35 | |
 | 12751-8 | 4.530 | 4.250 | 6.385 | 1.270 | .990 x 2.930 | 13.0cc | 12.7 | .043 x 1/16 x 3/16 | 8 | $1928.35 | |
 | 12752-8 | 4.560 | 4.250 | 6.385 | 1.270 | .990 x 2.930 | 13.0cc | 12.9 | .043 x 1/16 x 3/16 | 8 | $1928.35 | |
 | 12753-8 | 4.600 | 4.250 | 6.385 | 1.270 | .990 x 2.930 | 13.0cc | 13.1 | .043 x 1/16 x 3/16 | 8 | $1928.35 | |
 | 12754-8 | 4.530 | 4.250 | 6.535 | 1.120 | .990 x 2.930 | 13.0cc | 12.7 | .043 x 1/16 x 3/16 | 8 | $1928.35 | |
 | 12755-8 | 4.560 | 4.250 | 6.535 | 1.120 | .990 x 2.930 | 13.0cc | 12.9 | .043 x 1/16 x 3/16 | 8 | $1928.35 | |
 | 12756-8 | 4.600 | 4.250 | 6.535 | 1.120 | .990 x 2.930 | 13.0cc | 13.1 | .043 x 1/16 x 3/16 | 8 | $1928.35 | |
 | 12757-8 | 4.625 | 4.250 | 6.385 | 1.270 | .990 x 2.930 | 13.0cc | 13.2 | .043 x 1/16 x 3/16 | 8 | $1928.35 | |
 | 12758-8 | 4.500 | 4.250 | 6.535 | 1.120 | .990 x 2.930 | 13.0cc | 12.6 | .043 x 1/16 x 3/16 | 8 | $1928.35 | |
 | 12759-8 | 4.625 | 4.250 | 6.535 | 1.120 | .990 x 2.930 | 13.0cc | 13.2 | .043 x 1/16 x 3/16 | 8 | $1928.35 | |
 | 12760-8 | 4.500 | 4.500 | 6.700 | 1.240 | .990 x 2.930 | 13.0cc | 13.6 | .043 x 1/16 x 3/16 | 8 | $1928.35 | |
 | 12761-8 | 4.530 | 4.500 | 6.700 | 1.240 | .990 x 2.930 | 13.0cc | 13.8 | .043 x 1/16 x 3/16 | 8 | $1928.35 | |
 | 12762-8 | 4.560 | 4.500 | 6.700 | 1.240 | .990 x 2.930 | 13.0cc | 13.9 | .043 x 1/16 x 3/16 | 8 | $1928.35 | |
 | 12763-8 | 4.600 | 4.500 | 6.700 | 1.240 | .990 x 2.930 | 13.0cc | 14.1 | .043 x 1/16 x 3/16 | 8 | $1928.35 | |
 | 12764-8 | 4.625 | 4.500 | 6.700 | 1.240 | .990 x 2.930 | 13.0cc | 14.3 | .043 x 1/16 x 3/16 | 8 | $1928.35 | |
 | 12765-8 | 4.600 | 4.750 | 6.700 | 1.120 | .990 x 2.930 | 6.0cc | 14.1 | .043 x .043 x 3/16 | 8 | $1928.35 | |
 | 12766-8 | 4.610 | 4.750 | 6.700 | 1.120 | .990 x 2.930 | 6.0cc | 14.1 | .043 x .043 x 3/16 | 8 | $1928.35 | |
 | 12767-8 | 4.625 | 4.750 | 6.700 | 1.120 | .990 x 2.930 | 6.0cc | 14.2 | .043 x .043 x 3/16 | 8 | $1928.35 | |
 | 12768-8 | 4.610 | 4.250 | 6.385 | 1.270 | .990 x 2.930 | 13.0cc | 13.1 | .043 x 1/16 x 3/16 | 8 | $1928.35 | |
 | 12769-8 | 4.610 | 4.250 | 6.535 | 1.120 | .990 x 2.930 | 13.0cc | 13.1 | .043 x 1/16 x 3/16 | 8 | $1928.35 | |
 | 12770-8 | 4.610 | 4.500 | 6.700 | 1.240 | .990 x 2.930 | 13.0cc | 14.2 | .043 x 1/16 x 3/16 | 8 | $1928.35 |
Swipe left or right on tables below to see more info.
Browse Big Chief/Big Duke Nitrous Series Products
Big Block Chevy 18 Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous applications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12750-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18 Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous applications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12751-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18 Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous applications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12752-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18 Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous applications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12753-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18? Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous spplications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12754-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18? Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous spplications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12755-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18 Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous applications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12756-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18 Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous applications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12757-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18? Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous spplications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12758-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18 Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous applications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12759-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18 Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous applications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12760-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18 Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous applications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12761-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18 Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous applications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12762-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18 Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous applications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12763-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18 Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous applications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12764-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18 Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous applications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12765-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18 Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous applications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12766-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18 Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous applications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12767-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18 Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous applications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12768-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18 Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous applications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12769-8
Condition:
New
Price: $1,928.35
Big Block Chevy 18 Big Chief Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; Vertical Gas Ports; 3D Dome & Pockets; Designed for nitrous applications H-13 Pins, Lock's & Support Rails (if required) included
Item #: 12770-8
Condition:
New
Price: $1,928.35
Items 1-21 of 21