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Manley Severe Duty Series Chevy Big Block Intake Valve 2 300 In Head Dia 5 325 In O/A Length
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$70.99
$71.29
Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000...