LS3 276cc Cylinder Head Bare

The FLOTEK LS3 276cc Cylinder Head Bare is purpose-built for builders and enthusiasts pursuing maximum flow and performance from modern GM LS-series engines. Whether you're assembling a street engine, a track-focused build, or a restomod project, this bare cylinder head provides the foundation for serious horsepower gains. The 276cc chamber volume is specifically engineered to deliver improved breathing efficiency and combustion characteristics across mid and high RPM ranges, making it an essential component for forced induction or naturally aspirated upgrades on LS3-based platforms.

The 276cc intake port volume optimizes air velocity and mixture homogenization, directly translating to measurable gains in volumetric efficiency and power output compared to smaller factory alternatives. FLOTEK's bare head arrives without valves, springs, or rocker hardware, allowing builders complete control over valve selection and valvetrain geometry for their specific application. The casting quality and port finish ensure consistency across multiple units, reducing the need for extensive porting work while maintaining compatibility with standard LS3 block dimensions and deck height specifications. Weighing 24.28 lbs, the head's material composition is engineered to handle elevated boost pressures and sustained high-RPM operation without compromise.

This bare cylinder head is ideal for engine builders, race teams, and dedicated enthusiasts who understand LS platform architecture and are assembling complete powerplants from the ground up. Installation requires familiarity with proper torque specifications, head gasket selection, and valvetrain setup—tasks best suited for experienced mechanics or shops with LS engine expertise. Verify compatibility with your specific LS3 block variant and confirm that all necessary gaskets, fasteners, and accessory components are sourced separately before beginning assembly. The FLOTEK LS3 276cc Cylinder Head Bare represents genuine performance potential when paired with quality internal components and professional installation practices.