Description
If you’re building a serious small block Chevy engine, valve quality directly impacts combustion efficiency, heat dissipation, and overall reliability under sustained high RPM operation. Manley’s severe-duty exhaust valves are engineered to withstand the thermal and mechanical stresses that stock valves simply can’t handle, making them essential for forced induction, nitrous applications, or extended track duty. This complete set of eight stainless steel valves gives you the durability and precision tolerances required for competition-grade performance.
- Severe Duty rated
- 1.600″ head diameter
- 0.342″ stem diameter
- 5.065″ total length
- Stainless steel construction
- Small Block Chevy fit
- Set of 8 valves
- Manley 11749-8
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