GM LSx 210cc Enforcer Cyl Head 64cc Assembled

The GM LS-Series 210cc Enforcer Cylinder Head is a fully assembled, performance-oriented cylinder head engineered for builders seeking proven flow characteristics and chamber efficiency in LS-platform engine builds. This 64cc combustion chamber head features 2.020-inch intake and 1.600-inch exhaust valves paired with 1.290-inch valve springs, angle-plug configuration, and aluminum construction—delivering the intake and exhaust flow dynamics demanded by street, road-course, and high-output LS engine applications.

The 210cc intake runner volume balances port velocity with air mass flow, optimizing fuel atomization and combustion efficiency across the RPM band. The 64cc chamber size reduces compression losses and supports controlled detonation margins when tuned for forced-induction or naturally aspirated configurations. The angle-plug design improves flame propagation and combustion consistency, critical for reliable power delivery and consistent ignition timing. Fully assembled construction eliminates valve seat micro-movement and simplifies installation into your engine block.

Buyers performing LS engine restorations, performance upgrades, or complete engine builds rely on cylinder head specifications to control compression ratio, intake manifold compatibility, and peak power. This head accommodates common LS intake manifolds and supports both carbureted and fuel-injected induction systems. The 1.290-inch spring rate provides valve control at elevated RPM without excessive seat wear, essential for sustained high-performance operation or boost applications where valve float becomes a limiting factor.

LS-Series cylinder heads remain the foundation of affordable, repeatable performance in the small-block Chevrolet segment. Whether for road-racing, drag-strip duty, or customer restoration work, head selection determines flow efficiency and detonation resistance long-term. This enforcer-series head delivers proven specifications at a competitive price point.