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Cylinder Heads, Big Chief, Aluminum, Assembled, 87cc Chamber, 424cc Intake, Round Exhaust Port, Spread, Chevrolet, Big Block, Each

These Big Chief cylinder heads from Dart put Pro Stock technology within the reach of every racer and engine builder. They have what it takes to win today: spread intake ports, shallow valve angles, efficient combustion chambers, raised exhaust runners, and a valvetrain that's reliable at high rpm. That's some serious performance, right out of the box!