Be The Camshaft Expert
Even with its big 2.3-inch intake valves, this Dart big-block Chevy head falls way short of its small-block equivalent. To maintain parity with a 2.02 intake valved 350, a 500-inch big-block head would need to have a 2.42-inch valve, and a 572 incher would need nearer 2.6 inches. The smaller the valves are in relation to the cubes, the more the overlap can be increased.
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