Big Block Chevy Bare Bare Aluminum Cylinder Head Big Block Chevy Intake Ports: 320 cc Rectangle Combustion Chamber: 133 cc For Intake Valve: 2.250 in. For Exhaust Valve: 1.880 in. Sold Individually
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![FLOTEK Cylinder Heads 306-500: 306-500 Cylinder Head for Big Block Chevy Engines, 320 cc Intake Ports, 133 cc Combustion Chambers [Bare]](/web/image/product.product/78322/image_1024/%5BFLK-306-500%5D%20FLOTEK%20Cylinder%20Heads%20306-500:%20306-500%20Cylinder%20Head%20for%20Big%20Block%20Chevy%20Engines%2C%20320%20cc%20Intake%20Ports%2C%20133%20cc%20Combustion%20Chambers%20%5BBare%5D?unique=b34bbb8)
![FLOTEK Cylinder Heads 306-500: 306-500 Cylinder Head for Big Block Chevy Engines, 320 cc Intake Ports, 133 cc Combustion Chambers [Bare]](/web/image/product.product/78322/image_128/%5BFLK-306-500%5D%20FLOTEK%20Cylinder%20Heads%20306-500:%20306-500%20Cylinder%20Head%20for%20Big%20Block%20Chevy%20Engines%2C%20320%20cc%20Intake%20Ports%2C%20133%20cc%20Combustion%20Chambers%20%5BBare%5D?unique=b34bbb8)
