Manley 115058 Street Performance Engine Valve for Pontiac

The Manley 115058 is a Street Performance (SP) Series engine valve designed for Pontiac V8 applications. Manley Performance has been manufacturing high-quality valvetrain components for decades, and the SP Series represents an excellent upgrade over OEM valves for enthusiasts seeking improved durability and flow characteristics without sacrificing street reliability.

Manley Street Performance valves are precision-machined from high-quality steel alloy and feature tight tolerances to ensure consistent sealing and long service life. They are engineered as a direct-fit replacement or performance upgrade for Pontiac engines commonly found in classic muscle cars and performance builds.

Key Features:

• Street Performance (SP) Series — engineered for both daily driving and performance use
• Precision-machined from high-grade steel alloy for strength and heat resistance
• Tight dimensional tolerances for consistent sealing and reduced blowby
• Designed as a direct replacement or upgrade for Pontiac V8 engine valves
• Manufactured by Manley Performance, a trusted name in high-performance valvetrain components
• Compatible with standard valve springs and retainers in typical Pontiac applications

Whether you are rebuilding a classic Pontiac engine or upgrading for improved performance, the Manley 115058 Street Performance valve delivers the quality and precision craftsmanship that Manley Performance is known for.