Description
If you’re building or rebuilding an LS engine for sustained high-RPM operation, OEM exhaust valves will cost you power and reliability. Manley’s Race Series exhaust valves are engineered from premium stainless steel to handle the thermal and mechanical demands of forced induction and competitive racing, delivering consistent valve sealing and longevity where it matters most. This set of eight valves is a direct bolt-in replacement that pairs seamlessly with your LS cylinder head, eliminating guesswork and minimizing downtime.
- Exhaust Valve
- Race Series
- 1.590 in Head
- 0.314 in Stem
- 4.923 in Length
- Stainless Steel
- GM LS-Series
- Set of 8
- MPN: 11621-8
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