BBC 290cc Alum Cyl Head Assembled

The FLOTEK BBC 290cc Aluminum Cylinder Head Assembled (MPN 290-6058) is a fully assembled big block Chevy cylinder head engineered for high-performance engine builds. This aluminum head combines a 290 cubic centimeter intake volume with a compact 112 cubic centimeter chamber, delivering the flow characteristics and combustion efficiency required for race and street performance applications. The assembled configuration eliminates time-consuming valve and spring installation, allowing builders to progress directly to block preparation and final engine assembly.

Key specifications include 2.300-inch intake valves paired with 1.880-inch exhaust valves, sized to optimize flow for the chamber volume and intended RPM range. The 1.620-inch valve springs provide adequate seat pressure and control for street and moderate boost applications without requiring custom retainers. Angle-plug configuration enhances ignition efficiency and allows for larger valve diameters than conventional straight-plug layouts. Aluminum construction reduces overall engine weight compared to cast iron alternatives while maintaining thermal stability under sustained load. At 43 pounds, the assembled head represents a complete foundation component requiring only gasket surfaces and port matching appropriate to the specific block and intake manifold platform.

This cylinder head serves experienced engine builders, hot rod fabricators, and performance enthusiasts building or rebuilding big block Chevy engines for street performance, track applications, or marine service. The pre-assembled design reduces labor time and ensures consistent valve seating geometry from the factory. Verification of port matching, valve clearance, and spark plug reach relative to specific piston and manifold configurations remains the builder's responsibility prior to installation. FLOTEK BBC 290cc cylinder heads are commonly specified in displacement-critical builds where intake volume directly influences volumetric efficiency.