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Diamond Racing Pistons - 429 Boss
Piston Features:
- 3D milling on piston crowns for ready to install finish
- Designed to work with OEM, Motorsport "Boss" Heads, E2ZM, E3ZM & Kaase Boss cylinder heads
- Top ring down dimension: .375"
- Ratios figured for .040 head gasket @ 10.320 Deck
- Standard ring package 1/16 x 1/16 x 3/16 ring package
- Premium 8620 .185W wrist pins included
- Valve pocket depth: 0.275" intake and .269" exhaust
- Will work with up to a intake valve size of 2.400" and exhaust valve size of 1.900"
- Made from 2618 alloy
Swipe left or right on tables below to see more info.
Items 1-7 of 7
image | item no | bore | stroke | rod | comp height | pin | cc | compression ratio | ring thickness | cyl qty | msrp | buy |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 40801-8 | 4.390 | 3.590 | 6.605 | 1.865 | 1.040 x 2.930 | -3.0cc | 10.2 | 1/16 x 1/16 x 3/16 | 8 | $1674.76 | |
 | 40802-8 | 4.400 | 3.590 | 6.605 | 1.865 | 1.040 x 2.930 | -3.0cc | 10.2 | 1/16 x 1/16 x 3/16 | 8 | $1674.76 | |
 | 40803-8 | 4.420 | 3.590 | 6.605 | 1.865 | 1.040 x 2.930 | -3.0cc | 10.3 | 1/16 x 1/16 x 3/16 | 8 | $1674.76 | |
 | 40804-8 | 4.440 | 3.590 | 6.605 | 1.865 | 1.040 x 2.930 | -3.0cc | 10.3 | 1/16 x 1/16 x 3/16 | 8 | $1674.76 | |
 | 40805-8 | 4.390 | 3.850 | 6.605 | 1.785 | 1.040 x 2.930 | -7.0cc | 10.2 | 1/16 x 1/16 x 3/16 | 8 | $1674.76 | |
 | 40809-8 | 4.390 | 4.150 | 6.800 | 1.440 | .990 x 2.930 | -7.0cc | 10.9 | 1/16 x 1/16 x 3/16 | 8 | $1674.76 | |
 | 40813-8 | 4.390 | 4.300 | 6.800 | 1.365 | .990 x 2.930 | -7.0cc | 11.2 | 1/16 x 1/16 x 3/16 | 8 | $1674.76 |
Swipe left or right on tables below to see more info.
Browse 429 Boss Products
BB Ford 429 Boss Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; 3D Pockets; Pins, Lock's & Support Rails (if required) included
Item #: 40801-8
Condition:
New
Price: $1,674.76
BB Ford 429 Boss Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; 3D Pockets; Pins, Lock's & Support Rails (if required) included
Item #: 40802-8
Condition:
New
Price: $1,674.76
BB Ford 429 Boss Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; 3D Pockets; Pins, Lock's & Support Rails (if required) included
Item #: 40803-8
Condition:
New
Price: $1,674.76
BB Ford 429 Boss Dome
Description:
Forced pin oilers from the oil ring; Pin Fitted; 3D Pockets; Pins, Lock's & Support Rails (if required) included
Item #: 40804-8
Condition:
New
Price: $1,674.76
BB Ford 429 Boss Flat Top
Description:
Forced pin oilers from the oil ring; Pin Fitted; 3D Pockets; Pins, Lock's & Support Rails (if required) included
Item #: 40805-8
Condition:
New
Price: $1,674.76
BB Ford 429 Boss Flat Top
Description:
Forced pin oilers from the oil ring; Pin Fitted; Later Gas Ports; 3D Pockets; Designed for nitrous applications; H-13 Pins, Lock's & Support Rails (if required) included
Item #: 40809-8
Condition:
New
Price: $1,674.76
BB Ford 429 Boss Flat Top
Description:
Forced pin oilers from the oil ring; Pin Fitted; Later Gas Ports; 3D Pockets; Designed for nitrous applications; H-13 Pins, Lock's & Support Rails (if required) included
Item #: 40813-8
Condition:
New
Price: $1,674.76
Items 1-7 of 7