BR LS Compatible Series Cylinder Heads / 12deg/B

The BRODIX BR LS Compatible Series Cylinder Heads with 12-degree valve angle are bare aluminum heads engineered for GM LS-series engine platforms. Featuring 2.204-inch intake and 1.614-inch exhaust valves, these heads deliver 262 cubic centimeters of intake port volume and a 71 cubic centimeter combustion chamber optimized for high-flow applications. The angle-plug design supports modern ignition timing geometry, making these heads a foundation component for serious LS engine builds targeting increased horsepower and torque output.

Built from aluminum construction, this cylinder head pair weighs 56.1 lbs combined and measures 13.4 x 10 x 20.5 inches, confirming compatibility with standard LS engine bay dimensions. The 262 cc intake runner sizing balances velocity and flow characteristics across the RPM band—critical for engines running in naturally aspirated or moderately boosted configurations. The combustion chamber volume directly affects compression ratio calculations; builders must account for this specification when selecting pistons and planning final engine tune. As bare heads, these components arrive without valve guides, seats, or springs installed, allowing builders to customize valve train components to match their specific application requirements and performance targets.

These heads serve LS engine builders, performance shop technicians, and enthusiasts constructing stroker packages, crate engine builds, or complete engine overhauls. The BR LS series is widely used in street performance, off-road power units, and marine applications where proven LS architecture provides a cost-effective foundation. Buyers planning a complete LS build should verify head compatibility with their specific block, intake manifold, and fuel system before ordering. The 12-degree angle-plug configuration is standard across most LS generations, though confirmation with your engine manual or builder is recommended prior to final assembly.