Manley Performance · New
Manley Chevy LS-3/L-99 (L-92 Head) Small Block Race Master Exhaust Valve - Single
MPN 11621-1 · Store SKU man11621-1
Supplier stock checked 11/7/2026, 10:00:22 PM UTC. Adding a part does not reserve it.
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Product details
Manley Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM. Head Diameter: 1.590 in. - Stem Diameter: 0.3136 in. - O/A : 4.923 in. Manley Valve - Exhaust, Valve-L-92 R/M 1.590
Manufacturer fitment & guides
Check 11621-1 against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- California Proposition 65: Y