
Manley Performance · New
Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem
MPN 11390H-8 · Store SKU man11390H-8
Supplier stock checked 11/7/2026, 9:46:22 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: 2.055 in. - Stem Diameter: .3133 in. - O/A : 4.874 - Hollow Stem Manley Valve - Intake, Valve-LS1 R/M 2.055 HOLLOW
Manufacturer fitment & guides
Check 11390H-8 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