Racekrafters 467Ci Stroker Cylinder Heads
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[5] The 6X cylinder heads were fully ported by Cory Porter and fitted with Manley 2.11-inch intake and 1.77-inch exhaust valves—larger than the stock 1.66-inch exhaust valve. Craig explains, “We upgraded the exhaust valve size for two reasons: 1) It allows for the removal of more material to repair the valve seat area; 2) It allows for more bowl area under the valve to improve flow.” View Related Article
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