LS3 2.165 Intake Valves 5.195 O.A.L.

The AIR FLOW RESEARCH LS3 2.165 Intake Valves feature a 5.195 inch overall length and are purpose-engineered for GM LS-series engine platforms. This stainless steel intake valve set of eight delivers the precision geometry and material composition required for high-flow cylinder head applications where intake charge velocity and volumetric efficiency directly impact engine output. These valves are manufactured to exacting tolerances to ensure proper seating, consistent combustion chamber seal, and reliable performance across extended operating ranges.

Each valve features a 2.165-inch head diameter and an 8mm stem, dimensions that define flow characteristics and guide fit for LS-series cylinder heads. The 5.195-inch length accommodates standard LS head valve pocket geometry and spring retention hardware. Stainless steel construction provides corrosion resistance and thermal stability under the sustained heat cycling that occurs in high-performance and racing applications. AIR FLOW RESEARCH valves are engineered to maintain dimensional consistency and face concentricity, critical factors that determine how effectively the valve seats and controls charge flow into the combustion chamber.

This set suits engine builders, performance shops, and LS engine enthusiasts who are rebuilding or upgrading cylinder head flow capabilities. Whether preparing an engine for track duty, street performance, or marine applications, matched intake valve sets with precise head and stem dimensions ensure repeatability across all eight cylinders and maximize the cylinder head's intended flow potential. AIR FLOW RESEARCH components have established a reputation among serious engine builders for dimensional accuracy and material quality.

LS-series engines dominate the performance engine market due to their efficient architecture and proven platform for modification. Quality intake valve components ensure that expensive cylinder head work translates into measurable combustion efficiency and power delivery. Sourcing matched sets from established manufacturers eliminates guesswork and ensures that each valve meets the specifications your cylinder head design requires.