Chevrolet GM LS3 Cylinder Head With Valves & Springs # 12675871Cylinder Head, LS3, Aluminum, Assembled, 68. 4cc, 260cc Intake Runner, Each Combustion Chamber Volume (cc): 68. 4 Intake Runner Volume (cc): 260cc Cylinder Head Style: Assembled Cylinder Head Material: Aluminum Intake Port Shape: Rectangular Intake Valve Diameter (in.): 2. 165 in. CNC Machined Combustion Chamber: No CNC Machined Intake Runner: No CNC Machined Exhaust Runner: No Intake Port Location: Standard Exhaust Port Shape: D port Exhaust Port
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Chevrolet GM LS3 Cylinder Head With Valves & Springs # 12675871