SBC LS1 C/6 1.600in Exhaust Valves

The SBC LS1 C/6 1.600in Exhaust Valves are precision-engineered components designed for GM LS-series engine builds and performance rebuilds. This set of eight stainless steel exhaust valves delivers the dimensional consistency and material durability required for high-revving LS engine applications. Each valve features a 1.600-inch head diameter, 0.313-inch valve stem, and 5.015-inch overall length, making these valves compatible with standard LS-series cylinder head ports and valve seats.

Stainless construction resists thermal fatigue and corrosion across the full operating temperature range, a critical requirement for exhaust-side valves exposed to peak combustion temperatures and acidic exhaust gas. The 1.600-inch head size optimizes flow characteristics in LS cylinder heads while maintaining the structural integrity needed for sustained high-RPM operation. The precise 0.313-inch stem diameter ensures proper fit in LS-series valve guides without play or binding. At 5.015 inches long, these valves provide the correct stack height for OEM and performance LS applications without requiring aftermarket spacers or shims.

These exhaust valves are essential for engine rebuilds, performance upgrades, and LS engine swaps where OEM or high-quality replacement components are needed. Whether restoring a stock LS1 engine or assembling a stroker build, having a complete OEM-specification valve set ensures proper sealing, durability, and reliability. The set of eight covers all eight exhaust ports in a standard LS engine, eliminating the need for piecemeal sourcing.

LS-series engines are foundational to American performance, from street cruisers to race applications. Quality exhaust valves are non-negotiable components in any serious LS build, as they directly impact scavenging efficiency, peak RPM capability, and long-term durability. TacticalSurplusUSA stocks the specific part numbers and specifications trusted for LS engine work.