SDPC LS3 L92 CNC Ported Cylinder Heads

Casting Number: 12595364, 12582716, 12604863
Valve Angle: 15-degree
Combustion Chamber: 70cc*
Intake Port Volume: 275cc*
Exhaust port Volume: 99cc*
Minimum Cylinder Bore Required: 4.000"

* Approximate, Numbers are within +/- 2ccs

Milling Information for Combustion Chamber Sizing:
 - Approximately 0.006 per 1-cc
For 68-cc Chamber Remove 0.012
For 65-cc Chamber Remove 0.030

Specifications:

Casting Number: 12595364, 12582716,
Valve Angle: 15-degree
Combustion Chamber: 70cc*
Intake Port Volume: 275cc*
Exhaust port Volume: 99cc*
Minimum Cylinder Bore Required: 4.000"

* Approximate, Numbers are within +/- 2ccs

Milling Information for Combustion Chamber Sizing:
 - Approximately 0.006 per 1-cc
For 68-cc Chamber Remove 0.012
For 65-cc Chamber Remove 0.030

Specifications:

Valve Angle: 15-degree
Combustion Chamber: 70cc*
Intake Port Volume: 279cc*
Exhaust port Volume: 99cc*
Minimum Cylinder Bore Required: 4.000"

Casting Number: 12595364 or 12582716
Valve Angle: 15-degree
Combustion Chamber: 70cc*
Intake Port Volume: 279cc*
Exhaust port Volume: 99cc*
Minimum Cylinder Bore Required: 4.000"

Casting Number: 12595364 or 12582716
Valve Angle: 15-degree
Combustion Chamber: 70cc*
Intake Port Volume: 279cc*
Exhaust port Volume: 99cc*
Minimum Cylinder Bore Required: 4.000"

Casting Number: 12595364 or 12582716
Valve Angle: 15-degree
Combustion Chamber: 70cc*
Intake Port Volume: 279cc*
Exhaust port Volume: 99cc*
Minimum Cylinder Bore Required: 4.000"

Casting Number: 12595364, 12582716,
Valve Angle: 15-degree
Combustion Chamber: 70cc*
Intake Port Volume: 275cc*
Exhaust port Volume: 99cc*
Minimum Cylinder Bore Required: 4.000"

* Approximate, Numbers are within +/- 2ccs

Milling Information for Combustion Chamber Sizing:
 - Approximately 0.006 per 1-cc
For 68-cc Chamber Remove 0.012
For 65-cc Chamber Remove 0.030

Specifications:

Valve Angle: 15-degree
Combustion Chamber: 70cc*
Intake Port Volume: 279cc*
Exhaust port Volume: 99cc*
Minimum Cylinder Bore Required: 4.000"

* Approximate, Numbers are within +/- 2ccs

Milling Information for Combustion Chamber Sizing:
 - Approximately 0.006 per 1-cc
For 68-cc Chamber Remove 0.012
For 65-cc Chamber Remove 0.030

Specifications: