Manley 11125-1 Sport Compact Race Series Stainless Steel Engine Valves

The Manley 11125-1 Sport Compact Race Series Valves are precision-engineered stainless steel engine valves built to deliver exceptional flow and durability across a wide range of performance applications. Manufactured using Manley's proprietary Race Series alloy, these valves are designed to outperform in even the most demanding conditions—from street builds to 1,000+ horsepower competition vehicles.

Key Features:

• Race Series Stainless Steel Alloy – Premium alloy construction delivers superior strength, heat resistance, and long-term durability
• Chrome-Plated Stems – Durable chrome stems reduce friction and wear for extended service life
• Swirl-Polished Under-Head Design – Enhances airflow characteristics and reduces turbulence in the port
• Pro-Flo Intake Design – Reduced stem diameter in the fillet area improves airflow while simultaneously lowering valve weight
• Fully Hardened Tips – Resists wear from rocker arm contact in high-RPM and high-load applications
• Completely Machined Combustion Faces – Ensures consistent sealing and optimal combustion efficiency
• Closely Controlled Margin Heights – Tight manufacturing tolerances for consistent performance across the entire valve set
• Exact Stem-to-Seat Concentricity – Precision alignment for superior sealing and reduced leakdown

Extreme Duty Exhaust Option: Select applications utilize Manley's Extreme Duty exhaust alloy, engineered for maximum hot hardness and high-temperature strength. This alloy is specifically suited for heavily boosted applications where exhaust gas temperatures reach extreme levels, making it the preferred choice for forced induction builds pushing the limits of performance.

Manley Sport Compact Race Series Valves are a versatile solution for engine builders seeking OEM-quality fitment with race-proven performance. Whether building a mild street engine or a full-race drag or drift application, these valves provide the reliability and flow capacity required to maximize power output.