• Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.120 C/H – 4.280 Bore – 4.250 Stroke – 51.00CC – #99546

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.280
    Stroke: 4.250
    Rod Length: 6.535
    Compression Height: 1.120
    Compression Ratio (109.00): 15.40
    Compression Ratio (118.00): 13.70
    Compression Ratio (124.00): 12.80
    Dome Volume: 51.00
    Dome Height: .700
    Gram Weight: 529
    Rings: 1/16 1/16 3/16
    Ring Set: CR9190
    Rings Included: No
    Oil Rail Spacer: ORS-425
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .282
    Second Land: .125
    Oil Land: .070
    Deck Thickness: .200
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

  • Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.120 C/H – 4.310 Bore – 4.250 Stroke – 51.00CC – #99547

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.310
    Stroke: 4.250
    Rod Length: 6.535
    Compression Height: 1.120
    Compression Ratio (109.00): 15.50
    Compression Ratio (118.00): 13.90
    Compression Ratio (124.00): 13.00
    Dome Volume: 51.00
    Dome Height: .700
    Gram Weight: 531
    Rings: 1/16 1/16 3/16
    Ring Set: CR9190
    Rings Included: No
    Oil Rail Spacer: ORS-425
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .282
    Second Land: .125
    Oil Land: .070
    Deck Thickness: .200
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

  • Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.120 C/H – 4.350 Bore – 4.250 Stroke – 51.00CC – #99553

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.350
    Stroke: 4.250
    Rod Length: 6.535
    Compression Height: 1.120
    Compression Ratio (109.00): 15.70
    Compression Ratio (118.00): 14.10
    Compression Ratio (124.00): 13.20
    Dome Volume: 51.00
    Dome Height: .700
    Gram Weight: 545
    Rings: 1/16 1/16 3/16
    Ring Set: CR9190
    Rings Included: No
    Oil Rail Spacer: ORS-431
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .282
    Second Land: .125
    Oil Land: .070
    Deck Thickness: .200
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

  • Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.120 C/H – 4.560 Bore – 4.250 Stroke – 45.00CC – #99775

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.560
    Stroke: 4.250
    Rod Length: 6.535
    Compression Height: 1.120
    Compression Ratio (109.00): 14.90
    Compression Ratio (118.00): 13.50
    Compression Ratio (124.00): 12.70
    Dome Volume: 45.00
    Dome Height: .500
    Gram Weight: 552
    Rings: 1/16 1/16 3/16
    Ring Set: CR9130
    Rings Included: No
    Oil Rail Spacer: ORS-450
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .250
    Second Land: .145
    Oil Land: .078
    Deck Thickness: .290
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

  • Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.120 C/H – 4.600 Bore – 4.250 Stroke – 45.00CC – #99777

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.600
    Stroke: 4.250
    Rod Length: 6.535
    Compression Height: 1.120
    Compression Ratio (109.00): 15.90
    Compression Ratio (118.00): 14.40
    Compression Ratio (124.00): 13.50
    Dome Volume: 45.00
    Dome Height: .500
    Gram Weight: 594
    Rings: 1/16 1/16 3/16
    Ring Set: CR9130
    Rings Included: No
    Oil Rail Spacer: ORS-456
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .250
    Second Land: .145
    Oil Land: .078
    Deck Thickness: .190
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

  • Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.120 C/H – 4.625 Bore – 4.250 Stroke – 45.00CC – #99781

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.625
    Stroke: 4.250
    Rod Length: 6.535
    Compression Height: 1.120
    Compression Ratio (109.00): 16.00
    Compression Ratio (118.00): 14.50
    Compression Ratio (124.00): 13.60
    Dome Volume: 45.00
    Dome Height: .500
    Gram Weight: 592
    Rings: 1/16 1/16 3/16
    Ring Set: CR3340
    Rings Included: No
    Oil Rail Spacer: ORS-456
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .250
    Second Land: .145
    Oil Land: .078
    Deck Thickness: .215
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

  • Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.245 C/H – 4.280 Bore – 4.000 Stroke – 51.00CC – #99549

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.280
    Stroke: 4.000
    Rod Length: 6.535
    Compression Height: 1.245
    Compression Ratio (109.00): 14.50
    Compression Ratio (118.00): 13.00
    Compression Ratio (124.00): 12.10
    Dome Volume: 51.00
    Dome Height: .700
    Gram Weight: 561
    Rings: 1/16 1/16 3/16
    Ring Set: CR9190
    Rings Included: No
    Oil Rail Spacer: ORS-425
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .330
    Second Land: .157
    Oil Land: .078
    Deck Thickness: .200
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

  • Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.245 C/H – 4.310 Bore – 4.000 Stroke – 51.00CC – #99550

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.310
    Stroke: 4.000
    Rod Length: 6.535
    Compression Height: 1.245
    Compression Ratio (109.00): 14.70
    Compression Ratio (118.00): 13.10
    Compression Ratio (124.00): 12.30
    Dome Volume: 51.00
    Dome Height: .700
    Gram Weight: 559
    Rings: 1/16 1/16 3/16
    Ring Set: CR9190
    Rings Included: No
    Oil Rail Spacer: ORS-425
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .330
    Second Land: .157
    Oil Land: .078
    Deck Thickness: .200
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

  • Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.245 C/H – 4.320 Bore – 4.000 Stroke – 51.00CC – #99551

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.320
    Stroke: 4.000
    Rod Length: 6.535
    Compression Height: 1.245
    Compression Ratio (109.00): 14.70
    Compression Ratio (118.00): 13.20
    Compression Ratio (124.00): 12.30
    Dome Volume: 51.00
    Dome Height: .700
    Gram Weight: 561
    Rings: 1/16 1/16 3/16
    Ring Set: CR9190
    Rings Included: No
    Oil Rail Spacer: ORS-431
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .330
    Second Land: .157
    Oil Land: .078
    Deck Thickness: .200
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

  • Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.245 C/H – 4.350 Bore – 4.000 Stroke – 51.00CC – #99552

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.350
    Stroke: 4.000
    Rod Length: 6.535
    Compression Height: 1.245
    Compression Ratio (109.00): 14.90
    Compression Ratio (118.00): 13.30
    Compression Ratio (124.00): 12.40
    Dome Volume: 51.00
    Dome Height: .700
    Gram Weight: 571
    Rings: 1/16 1/16 3/16
    Ring Set: CR9190
    Rings Included: No
    Oil Rail Spacer: ORS-431
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .330
    Second Land: .157
    Oil Land: .078
    Deck Thickness: .200
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

  • Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.245 C/H – 4.560 Bore – 4.000 Stroke – 45.00CC – #99776

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.560
    Stroke: 4.000
    Rod Length: 6.535
    Compression Height: 1.245
    Compression Ratio (109.00): 14.80
    Compression Ratio (118.00): 13.40
    Compression Ratio (124.00): 12.60
    Dome Volume: 45.00
    Dome Height: .500
    Gram Weight: 594
    Rings: 1/16 1/16 3/16
    Ring Set: CR9130
    Rings Included: No
    Oil Rail Spacer: ORS-450
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .250
    Second Land: .145
    Oil Land: .078
    Deck Thickness: .190
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

  • Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.245 C/H – 4.600 Bore – 4.000 Stroke – 45.00CC – #99778

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.600
    Stroke: 4.000
    Rod Length: 6.535
    Compression Height: 1.245
    Compression Ratio (109.00): 15.00
    Compression Ratio (118.00): 13.60
    Compression Ratio (124.00): 12.80
    Dome Volume: 45.00
    Dome Height: .500
    Gram Weight: 607
    Rings: 1/16 1/16 3/16
    Ring Set: CR9130
    Rings Included: No
    Oil Rail Spacer: ORS-450
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .250
    Second Land: .145
    Oil Land: .078
    Deck Thickness: .190
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

  • Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.245 C/H – 4.625 Bore – 4.000 Stroke – 45.00CC – #99779

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.625
    Stroke: 4.000
    Rod Length: 6.535
    Compression Height: 1.245
    Compression Ratio (109.00): 15.20
    Compression Ratio (118.00): 13.70
    Compression Ratio (124.00): 12.90
    Dome Volume: 45.00
    Dome Height: .500
    Gram Weight: 618
    Rings: 1/16 1/16 3/16
    Ring Set: CR3340
    Rings Included: No
    Oil Rail Spacer: ORS-456
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .250
    Second Land: .145
    Oil Land: .078
    Deck Thickness: .190
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

  • Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.273 C/H – 4.280 Bore – 4.250 Stroke – 51.00CC – #83432

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.280
    Stroke: 4.250
    Rod Length: 6.385
    Compression Height: 1.273
    Compression Ratio (109.00): 15.40
    Compression Ratio (118.00): 13.70
    Compression Ratio (124.00): 12.80
    Dome Volume: 51.00
    Dome Height: .700
    Gram Weight: 566
    Rings: 1/16 1/16 3/16
    Ring Set: CR9190
    Rings Included: No
    Oil Rail Spacer: ORS-425
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .330
    Second Land: .157
    Oil Land: .078
    Deck Thickness: .199
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

  • Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.273 C/H – 4.310 Bore – 4.250 Stroke – 50.00CC – #99510

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.310
    Stroke: 4.250
    Rod Length: 6.385
    Compression Height: 1.273
    Compression Ratio (109.00): 15.30
    Compression Ratio (118.00): 13.70
    Compression Ratio (124.00): 12.80
    Dome Volume: 50.00
    Dome Height: .640
    Gram Weight: 565
    Rings: 1/16 1/16 3/16
    Ring Set: CR9190
    Rings Included: No
    Oil Rail Spacer: ORS-425
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .330
    Second Land: .157
    Oil Land: .078
    Deck Thickness: .200
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

  • Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.273 C/H – 4.350 Bore – 4.250 Stroke – 51.00CC – #99509

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.350
    Stroke: 4.250
    Rod Length: 6.385
    Compression Height: 1.273
    Compression Ratio (109.00): 15.70
    Compression Ratio (118.00): 14.10
    Compression Ratio (124.00): 13.20
    Dome Volume: 51.00
    Dome Height: .700
    Gram Weight: 595
    Rings: 1/16 1/16 3/16
    Ring Set: CR9190
    Rings Included: No
    Oil Rail Spacer: ORS-431
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .330
    Second Land: .157
    Oil Land: .078
    Deck Thickness: .200
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

  • Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.273 C/H – 4.375 Bore – 4.250 Stroke – 49.00CC – #99624

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.375
    Stroke: 4.250
    Rod Length: 6.385
    Compression Height: 1.273
    Compression Ratio (109.00): 15.50
    Compression Ratio (118.00): 13.90
    Compression Ratio (124.00): 13.00
    Dome Volume: 49.00
    Dome Height: .600
    Gram Weight: 580
    Rings: 1/16 1/16 3/16
    Ring Set: CR9190
    Rings Included: No
    Oil Rail Spacer: ORS-437
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .330
    Second Land: .157
    Oil Land: .078
    Deck Thickness: .199
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

  • Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.273 C/H – 4.500 Bore – 4.250 Stroke – 45.00CC – #99512

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.500
    Stroke: 4.250
    Rod Length: 6.385
    Compression Height: 1.273
    Compression Ratio (109.00): 15.40
    Compression Ratio (118.00): 13.90
    Compression Ratio (124.00): 13.00
    Dome Volume: 45.00
    Dome Height: .500
    Gram Weight: 577
    Rings: 1/16 1/16 3/16
    Ring Set: CR9190
    Rings Included: No
    Oil Rail Spacer: ORS-447
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .330
    Second Land: .157
    Oil Land: .078
    Deck Thickness: .199
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

  • Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.273 C/H – 4.500 Bore – 4.250 Stroke – 49.00CC – #85432

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.500
    Stroke: 4.250
    Rod Length: 6.385
    Compression Height: 1.273
    Compression Ratio (109.00): 16.20
    Compression Ratio (118.00): 14.50
    Compression Ratio (124.00): 13.60
    Dome Volume: 49.00
    Dome Height: .600
    Gram Weight: 589
    Rings: 1/16 1/16 3/16
    Ring Set: CR9190
    Rings Included: No
    Oil Rail Spacer: ORS-447
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .270
    Second Land: .137
    Oil Land: .078
    Deck Thickness: .230
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

  • Chevrolet Big Block: Open Chamber – High Compression – Dome Top: 1.273 C/H – 4.530 Bore – 4.250 Stroke – 45.00CC – #99513

    Whats Included: Complete Set Of Pistons, Locks, & Pins
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Not Recommended For Turbo Applications
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: Dome Top
    Bore: 4.530
    Stroke: 4.250
    Rod Length: 6.385
    Compression Height: 1.273
    Compression Ratio (109.00): 15.50
    Compression Ratio (118.00): 14.00
    Compression Ratio (124.00): 13.20
    Dome Volume: 45.00
    Dome Height: .500
    Gram Weight: 565
    Rings: 1/16 1/16 3/16
    Ring Set: CR9190
    Rings Included: No
    Oil Rail Spacer: ORS-447
    Pin Type: 5115 Straight Wall
    Pin Diameter: .990
    Pin Length: 2.930
    Pin Wall: 150
    Pin Weight: 146 Grams
    Pin Buttons: Not Included
    Block Height: 9.800
    Top Land: .230
    Second Land: .134
    Oil Land: .078
    Deck Thickness: .225
    Intake Cutter: 2.400
    Exhaust Cutter: Slant
    Intake Depth: .320
    Exhaust Depth: .120 up
    Note: Compression Ratio based on .050 piston to head clearance (deck & gasket combined)
    Details

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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