• Chevrolet: 400 Small Block 23 Degree (Heavy Duty) – Flat Top: 1.063 C/H – 4.155 Bore – 3.875 Stroke – -4.00CC – #99473

    Whats Included: Complete Set Of Pistons, Locks, Pins & Oil Rail Spacers (As Required)
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Boost (Up To 8LBS)
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Flat Top
    Bore: 4.155
    Stroke: 3.875
    Rod Length: 6.000
    Compression Height: 1.063
    Compression Ratio (58): 12.10
    Compression Ratio (64): 11.30
    Compression Ratio (76): 10.00
    Dome Volume: -4.00
    Gram Weight: 437
    Rings: 1/16 1/16 3/16
    Ring Set: N/A
    Rings Included: No
    Oil Rail Spacer: ORS-412
    Pin Type: 5115 Straight Wall
    Pin Diameter: .927
    Pin Length: 2.500
    Pin Wall: .150
    Pin Weight: 118 Grams
    Block Height: 9.025
    Note: (1) Piston Rings Sold Separately. (2) Compression Ratio based on .050 piston to head clearance (deck & gasket combined).
    Details

  • Chevrolet: 400 Small Block 23 Degree (Heavy Duty) – Flat Top: 1.120 C/H – 4.155 Bore – 3.750 Stroke – -4.00CC – #90007

    Whats Included: Complete Set Of Pistons, Locks & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Boost (Up To 8LBS)
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Flat Top
    Bore: 4.155
    Stroke: 3.750
    Rod Length: 6.000
    Compression Height: 1.120
    Compression Ratio (58): 12.10
    Compression Ratio (64): 11.30
    Compression Ratio (76): 10.00
    Dome Volume: -4.00
    Gram Weight: 411
    Rings: 1/16 1/16 1/8
    Ring Set: N/A
    Rings Included: No
    Oil Rail Spacer: N/A
    Pin Type: 5115 Straight Wall
    Pin Diameter: .927
    Pin Length: 2.500
    Pin Wall: .150
    Pin Weight: 118 Grams
    Block Height: 9.025
    Note: (1) Piston Rings Sold Separately. (2) Compression Ratio based on .050 piston to head clearance (deck & gasket combined).
    Details

  • Chevrolet: 400 Small Block 23 Degree (Heavy Duty) – Flat Top: 1.120 C/H – 4.155 Bore – 3.750 Stroke – -4.00CC – #99472

    Whats Included: Complete Set Of Pistons, Locks, Pins & Oil Rail Spacers (As Required)
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Boost (Up To 8LBS)
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Flat Top
    Bore: 4.155
    Stroke: 3.750
    Rod Length: 6.000
    Compression Height: 1.120
    Compression Ratio (58): 12.10
    Compression Ratio (64): 11.30
    Compression Ratio (76): 10.00
    Dome Volume: -4.00
    Gram Weight: 444
    Rings: 1/16 1/16 3/16
    Ring Set: N/A
    Rings Included: No
    Oil Rail Spacer: ORS-412
    Pin Type: 5115 Straight Wall
    Pin Diameter: .927
    Pin Length: 2.500
    Pin Wall: .150
    Pin Weight: 118 Grams
    Block Height: 9.025
    Note: (1) Piston Rings Sold Separately. (2) Compression Ratio based on .050 piston to head clearance (deck & gasket combined).
    Details

  • Chevrolet: 400 Small Block 23 Degree (Heavy Duty) – Flat Top: 1.133 C/H – 4.125 Bore – 3.750 Stroke – -4.00CC – #80004

    Whats Included: Complete Set Of Pistons, Locks & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Boost (Up To 8LBS)
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Flat Top
    Bore: 4.125
    Stroke: 3.750
    Rod Length: 6.000
    Compression Height: 1.133
    Compression Ratio (58): 12.00
    Compression Ratio (64): 11.10
    Compression Ratio (76): 9.90
    Dome Volume: -4.00
    Gram Weight: 419
    Rings: 1/16 1/16 1/8
    Ring Set: N/A
    Rings Included: No
    Oil Rail Spacer: N/A
    Pin Type: 5115 Straight Wall
    Pin Diameter: .927
    Pin Length: 2.500
    Pin Wall: .150
    Pin Weight: 118 Grams
    Block Height: 9.025
    Note: (1) Piston Rings Sold Separately. (2) Compression Ratio based on .050 piston to head clearance (deck & gasket combined).
    Details

  • Chevrolet: 400 Small Block 23 Degree (Heavy Duty) – Flat Top: 1.133 C/H – 4.155 Bore – 3.750 Stroke – -4.00CC – #95765

    Whats Included: Complete Set Of Pistons, Locks & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Boost (Up To 8LBS)
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Flat Top
    Bore: 4.155
    Stroke: 3.750
    Rod Length: 6.000
    Compression Height: 1.133
    Compression Ratio (58): 12.10
    Compression Ratio (64): 11.30
    Compression Ratio (76): 10.00
    Dome Volume: -4.00
    Gram Weight: 471
    Rings: 1/16 1/16 1/8
    Ring Set: N/A
    Rings Included: No
    Oil Rail Spacer: N/A
    Pin Type: 5115 Straight Wall
    Pin Diameter: .927
    Pin Length: 2.500
    Pin Wall: .150
    Pin Weight: 118 Grams
    Block Height: 9.025
    Note: (1) Piston Rings Sold Separately. (2) Compression Ratio based on .050 piston to head clearance (deck & gasket combined).
    Details

  • Chevrolet: 400 Small Block 23 Degree (Heavy Duty) – Flat Top: 1.133 C/H – 4.165 Bore – 3.750 Stroke – -4.00CC – #96765

    Whats Included: Complete Set Of Pistons, Locks & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Boost (Up To 8LBS)
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Flat Top
    Bore: 4.165
    Stroke: 3.750
    Rod Length: 6.000
    Compression Height: 1.133
    Compression Ratio (58): 12.10
    Compression Ratio (64): 11.30
    Compression Ratio (76): 10.00
    Dome Volume: -4.00
    Gram Weight: 468
    Rings: 1/16 1/16 1/8
    Ring Set: N/A
    Rings Included: No
    Oil Rail Spacer: N/A
    Pin Type: 5115 Straight Wall
    Pin Diameter: .927
    Pin Length: 2.500
    Pin Wall: .150
    Pin Weight: 118 Grams
    Block Height: 9.025
    Note: (1) Piston Rings Sold Separately. (2) Compression Ratio based on .050 piston to head clearance (deck & gasket combined).
    Details

  • Chevrolet: 400 Small Block 23 Degree (Heavy Duty) – Flat Top: 1.268 C/H – 4.155 Bore – 3.480 Stroke – -4.00CC – #95465

    Whats Included: Complete Set Of Pistons, Locks & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Boost (Up To 8LBS)
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Flat Top
    Bore: 4.155
    Stroke: 3.480
    Rod Length: 6.000
    Compression Height: 1.268
    Compression Ratio (58): 11.30
    Compression Ratio (64): 10.50
    Compression Ratio (76): 9.30
    Dome Volume: -4.00
    Gram Weight: 492
    Rings: 1/16 1/16 3/16
    Ring Set: N/A
    Rings Included: No
    Oil Rail Spacer: N/A
    Pin Type: 5115 Straight Wall
    Pin Diameter: .927
    Pin Length: 2.500
    Pin Wall: .150
    Pin Weight: 118 Grams
    Block Height: 9.025
    Note: (1) Piston Rings Sold Separately. (2) Compression Ratio based on .050 piston to head clearance (deck & gasket combined).
    Details

  • Chevrolet: 400 Small Block 23 Degree (Heavy Duty) – Flat Top: 1.420 C/H – 4.155 Bore – 3.750 Stroke – -4.00CC – #90008

    Whats Included: Complete Set Of Pistons, Locks & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Boost (Up To 8LBS)
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Flat Top
    Bore: 4.155
    Stroke: 3.750
    Rod Length: 5.700
    Compression Height: 1.420
    Compression Ratio (58): 12.10
    Compression Ratio (64): 11.30
    Compression Ratio (76): 10.00
    Dome Volume: -4.00
    Gram Weight: 455
    Rings: 1/16 1/16 3/16
    Ring Set: N/A
    Rings Included: No
    Oil Rail Spacer: N/A
    Pin Type: 5115 Straight Wall
    Pin Diameter: .927
    Pin Length: 2.500
    Pin Wall: .150
    Pin Weight: 118 Grams
    Block Height: 9.025
    Note: (1) Piston Rings Sold Separately. (2) Compression Ratio based on .050 piston to head clearance (deck & gasket combined).
    Details

  • Chevrolet: 400 Small Block 23 Degree (Heavy Duty) – Flat Top: 1.433 C/H – 4.125 Bore – 3.750 Stroke – -4.00CC – #97755

    Whats Included: Complete Set Of Pistons, Locks & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Boost (Up To 8LBS)
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Flat Top
    Bore: 4.125
    Stroke: 3.750
    Rod Length: 5.700
    Compression Height: 1.433
    Compression Ratio (58): 12.00
    Compression Ratio (64): 11.10
    Compression Ratio (76): 9.90
    Dome Volume: -4.00
    Gram Weight: 496
    Rings: 1/16 1/16 3/16
    Ring Set: N/A
    Rings Included: No
    Oil Rail Spacer: N/A
    Pin Type: 5115 Straight Wall
    Pin Diameter: .927
    Pin Length: 2.500
    Pin Wall: .150
    Pin Weight: 118 Grams
    Block Height: 9.025
    Note: (1) Piston Rings Sold Separately. (2) Compression Ratio based on .050 piston to head clearance (deck & gasket combined).
    Details

  • Chevrolet: 400 Small Block 23 Degree (Heavy Duty) – Flat Top: 1.433 C/H – 4.155 Bore – 3.750 Stroke – -4.00CC – #95755

    Whats Included: Complete Set Of Pistons, Locks & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Boost (Up To 8LBS)
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Flat Top
    Bore: 4.155
    Stroke: 3.750
    Rod Length: 5.700
    Compression Height: 1.433
    Compression Ratio (58): 12.10
    Compression Ratio (64): 11.30
    Compression Ratio (76): 10.00
    Dome Volume: -4.00
    Gram Weight: 516
    Rings: 1/16 1/16 3/16
    Ring Set: N/A
    Rings Included: No
    Oil Rail Spacer: N/A
    Pin Type: 5115 Straight Wall
    Pin Diameter: .927
    Pin Length: 2.500
    Pin Wall: .150
    Pin Weight: 118 Grams
    Block Height: 9.025
    Note: (1) Piston Rings Sold Separately. (2) Compression Ratio based on .050 piston to head clearance (deck & gasket combined).
    Details

  • Chevrolet: 400 Small Block 23 Degree (Heavy Duty) – Flat Top: 1.433 C/H – 4.165 Bore – 3.750 Stroke – -4.00CC – #96755

    Whats Included: Complete Set Of Pistons, Locks & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Boost (Up To 8LBS)
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Flat Top
    Bore: 4.165
    Stroke: 3.750
    Rod Length: 5.700
    Compression Height: 1.433
    Compression Ratio (58): 12.10
    Compression Ratio (64): 11.30
    Compression Ratio (76): 10.00
    Dome Volume: -4.00
    Gram Weight: 518
    Rings: 1/16 1/16 3/16
    Ring Set: N/A
    Rings Included: No
    Oil Rail Spacer: N/A
    Pin Type: 5115 Straight Wall
    Pin Diameter: .927
    Pin Length: 2.500
    Pin Wall: .150
    Pin Weight: 118 Grams
    Block Height: 9.025
    Note: (1) Piston Rings Sold Separately. (2) Compression Ratio based on .050 piston to head clearance (deck & gasket combined).
    Details

  • Chevrolet: 400 Small Block 23 Degree (Heavy Duty) – Flat Top: 1.568 C/H – 4.155 Bore – 3.480 Stroke – -4.00CC – #95455

    Whats Included: Complete Set Of Pistons, Locks & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Boost (Up To 8LBS)
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Flat Top
    Bore: 4.155
    Stroke: 3.480
    Rod Length: 5.700
    Compression Height: 1.568
    Compression Ratio (58): 11.30
    Compression Ratio (64): 10.50
    Compression Ratio (76): 9.30
    Dome Volume: -4.00
    Gram Weight: 530
    Rings: 1/16 1/16 3/16
    Ring Set: N/A
    Rings Included: No
    Oil Rail Spacer: N/A
    Pin Type: 5115 Straight Wall
    Pin Diameter: .927
    Pin Length: 2.500
    Pin Wall: .150
    Pin Weight: 118 Grams
    Block Height: 9.025
    Note: (1) Piston Rings Sold Separately. (2) Compression Ratio based on .050 piston to head clearance (deck & gasket combined).
    Details

  • Chevrolet: 400 Small Block 23 Degree (Heavy Duty) – Flat Top: 1.568 C/H – 4.155 Bore – 3.750 Stroke – -4.00CC – #95455

    Whats Included: Complete Set Of Pistons, Locks & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Boost (Up To 8LBS)
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Flat Top
    Bore: 4.155
    Stroke: 3.750
    Rod Length: 5.565
    Compression Height: 1.568
    Compression Ratio (58): 12.10
    Compression Ratio (64): 11.30
    Compression Ratio (76): 10.00
    Dome Volume: -4.00
    Gram Weight: 530
    Rings: 1/16 1/16 3/16
    Ring Set: N/A
    Rings Included: No
    Oil Rail Spacer: N/A
    Pin Type: 5115 Straight Wall
    Pin Diameter: .927
    Pin Length: 2.500
    Pin Wall: .150
    Pin Weight: 118 Grams
    Block Height: 9.025
    Note: (1) Piston Rings Sold Separately. (2) Compression Ratio based on .050 piston to head clearance (deck & gasket combined).
    Details

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625 S Douglas St. El Segundo, CA 90245

Phone: 1 (310) 536-0100

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Family Run Since 1979…

For roughly 4 decades now, Ross Racing Pistons has met the global racer demand, for the most advanced forged pistons in the racing industry. Along with a dedicated line of in-stock pistons, we specialize in the manufacturing of custom, high-end, forged aluminum Import and Domestic piston applications, for use in high horsepower motorsports.
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