Description
If you’re building or rebuilding an LS1 engine for serious duty, valve quality directly impacts combustion efficiency, peak horsepower, and longevity under sustained high RPM operation. Manley’s stainless steel exhaust valves are precision-manufactured to OEM specifications with the durability required for forced induction, high-boost applications, or extended track sessions. This set of eight valves ensures you have complete control over your engine’s breathing characteristics without compromise.
- Exhaust valve
- 1.600 in head diameter
- 0.3136 in stem diameter
- 4.923 in total length
- Stainless steel construction
- GM LS-series fitment
- Set of 8 valves
- Precision CNC-manufactured
- Bolt-in installation
