Manley Chevrolet Big Block Severe Duty/Pro Flo 5.374in O/A Length Exhaust Valves (Set of 8)

Discover the pinnacle of performance and racing excellence with Manley's Severe Duty? Valves. Exhaust valves crafted from XH-428 material and Intake valves from NK-844 material, these valves stand as a testament to our unwavering commitment to superiority in the industry. Severe Duty? Valves outshine the competition in every aspect.