All
Manley Small Block Chevy 1.600in Head Dia Severe Duty Exhaust Valves (Set of 8)
$415.99
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...