Manley 11685-8 Extreme Duty Exhaust Valves for GM LS-Series Engines, 1.590 Inch Head Diameter, Stainless Steel

The Manley 11685-8 extreme duty exhaust valves are engineered for high-performance GM LS-Series engines, including L62 and L92 models. Crafted from durable stainless steel, these valves are designed to withstand the intense heat and pressure of demanding applications. The 1.590-inch head diameter and 0.313-inch valve stem diameter ensure optimal airflow and sealing, contributing to improved engine efficiency and power output. With a length of approximately 4.923 inches, these valves are suitable for serious performance builds and engine rebuilds that require reliable, high-quality components. The set of eight valves provides a complete replacement for both intake and exhaust positions, ensuring balanced performance across the cylinder head.

Features:

• Constructed from stainless steel for durability and heat resistance

• Designed specifically for GM LS-Series engines, including L62 and L92 models

• Exhaust valve with a 1.590-inch head diameter and 0.313-inch stem diameter

• Length of approximately 4.923 inches for precise fitment

• Set of eight valves for complete engine rebuild or upgrade