• Chevrolet: LS – Conventional Forging: (-18cc) Dish Top – 1.299 C/H – 3.908 Bore – -15.80CC – #99178

    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 10LBS)
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: (-18cc) Dish Top
    Bore: 3.908
    Stroke: 3.622
    Rod Length: 6.125
    Compression Height: 1.299
    Compression Ratio (64): 9.0
    Compression Ratio (70): 8.5
    Compression Ratio (72): 8.3
    Dome Volume: -15.80
    Gram Weight: N/A
    Rings: 1.5 1.5 3.0
    Ring Set: R5067
    Rings Included: NO
    Oil Rail Spacer: ORS-387
    Pin Type: 5115 Straight Wall
    Pin Diameter: .927
    Pin Length: 2.300
    Pin Wall: .150
    Pin Weight: 107
    Block Height: 9.240
    NOTE: (1) Forged from high strength 2618-T61 aluminum with forged side reliefs with internal and external bracing (2) Optional Pin Upgrade Available (3) Optional Lateral or Vertical Gas Porting Available
    Details

  • Chevrolet: LS: (-18cc) Dish Top – 1.110 C/H – 4.005 Bore – -18.00CC – #87071

    Whats Included: Complete Set Of Pistons, Locks, Pins & Oil Rail Spacers (As Required)
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Boost (20+ LBS)
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: (-18cc) Dish Top
    Bore: 4.005
    Stroke: 4.000
    Rod Length: 6.125
    Compression Height: 1.110
    Compression Ratio (64): 10.0
    Compression Ratio (70): 9.5
    Compression Ratio (72): 9.3
    Dome Volume: -18.00
    Gram Weight: N/A
    Rings: 1.2 1.2 3.0
    Ring Set: RGN4002
    Rings Included: NO
    Oil Rail Spacer: ORS-400
    Pin Type: 5115 Straight Wall
    Pin Diameter: .927
    Pin Length: 2.300
    Pin Wall: .150
    Pin Weight: 107
    Block Height: 9.240
    NOTE: (1) Forged from high strength 2618-T61 aluminum with forged side reliefs with internal and external bracing (2) Optional Pin Upgrade Available (3) Optional Lateral or Vertical Gas Porting Available
    Details

  • Chevrolet: LS: (-18cc) Dish Top – 1.110 C/H – 4.030 Bore – -18.00CC – #87075

    Whats Included: Complete Set Of Pistons, Locks, Pins & Oil Rail Spacers (As Required)
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Boost (20+ LBS)
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: (-18cc) Dish Top
    Bore: 4.030
    Stroke: 4.000
    Rod Length: 6.125
    Compression Height: 1.110
    Compression Ratio (64): 10.1
    Compression Ratio (70): 9.5
    Compression Ratio (72): 9.4
    Dome Volume: -18.00
    Gram Weight: N/A
    Rings: 1.2 1.2 3.0
    Ring Set: RGN4032
    Rings Included: NO
    Oil Rail Spacer: ORS-400
    Pin Type: 5115 Straight Wall
    Pin Diameter: .927
    Pin Length: 2.300
    Pin Wall: .150
    Pin Weight: 107
    Block Height: 9.240
    NOTE: (1) Forged from high strength 2618-T61 aluminum with forged side reliefs with internal and external bracing (2) Optional Pin Upgrade Available (3) Optional Lateral or Vertical Gas Porting Available
    Details

  • Chevrolet: LS: (-18cc) Dish Top – 1.110 C/H – 4.070 Bore – -18.00CC – #87079

    Whats Included: Complete Set Of Pistons, Locks, Pins & Oil Rail Spacers (As Required)
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Boost (20+ LBS)
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: (-18cc) Dish Top
    Bore: 4.070
    Stroke: 4.000
    Rod Length: 6.125
    Compression Height: 1.110
    Compression Ratio (64): 10.3
    Compression Ratio (70): 9.7
    Compression Ratio (72): 9.5
    Dome Volume: -18.00
    Gram Weight: N/A
    Rings: 1.2 1.2 3.0
    Ring Set: RGN4072
    Rings Included: NO
    Oil Rail Spacer: ORS-406
    Pin Type: 5115 Straight Wall
    Pin Diameter: .927
    Pin Length: 2.300
    Pin Wall: .150
    Pin Weight: 107
    Block Height: 9.240
    NOTE: (1) Forged from high strength 2618-T61 aluminum with forged side reliefs with internal and external bracing (2) Optional Pin Upgrade Available (3) Optional Lateral or Vertical Gas Porting Available
    Details

  • Chevrolet: LS: (-18cc) Dish Top – 1.110 C/H – 4.130 Bore – -18.00CC – #87083

    Whats Included: Complete Set Of Pistons, Locks, Pins & Oil Rail Spacers (As Required)
    Application: Recommended for Applications Using Nitrous (Up To 250HP Shot) / Boost (20+ LBS)
    [Please Note]: Image is a representation of this item. Actual item may vary.

    Piston Top Type: (-18cc) Dish Top
    Bore: 4.130
    Stroke: 4.000
    Rod Length: 6.125
    Compression Height: 1.110
    Compression Ratio (64): 10.5
    Compression Ratio (70): 9.9
    Compression Ratio (72): 9.8
    Dome Volume: -18.00
    Gram Weight: N/A
    Rings: 1.2 1.2 3.0
    Ring Set: RGN4132
    Rings Included: NO
    Oil Rail Spacer: ORS-412
    Pin Type: 5115 Straight Wall
    Pin Diameter: .927
    Pin Length: 2.300
    Pin Wall: .150
    Pin Weight: 107
    Block Height: 9.240
    NOTE: (1) Forged from high strength 2618-T61 aluminum with forged side reliefs with internal and external bracing (2) Optional Pin Upgrade Available (3) Optional Lateral or Vertical Gas Porting Available
    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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