Manley LS1 R/M 1.590 Inch Exhaust Valves with 0.314 Inch Stem for GM LS-Series Engines

The Manley LS1 R/M 1.590 Inch Exhaust Valves are engineered for high-performance applications on GM LS-Series engines. Made from durable stainless steel, these valves are designed to withstand the rigors of racing and intensive driving conditions, providing reliable airflow and efficient engine operation. Each valve features a 1.590-inch head diameter and a 0.314-inch stem diameter, ensuring compatibility with various LS engine builds and aftermarket modifications. The set includes eight valves, making it suitable for complete cylinder head replacements or upgrades that demand precision and durability. These exhaust valves are ideal for enthusiasts and professional builders seeking to optimize exhaust flow, improve horsepower, and enhance overall engine performance. Easy to install and designed to meet or exceed OEM specifications, the Manley LS1 R/M valves are a trusted choice for serious automotive projects and racing applications.

Features:

• Constructed from high-quality stainless steel for durability and corrosion resistance

• Designed specifically for GM LS-Series engines, including LS1 models

• 1.590-inch valve head diameter optimized for exhaust flow

• 0.314-inch valve stem diameter suitable for performance upgrades

• Set of eight valves for comprehensive engine rebuilds or upgrades