SBC 200cc Alm Cyl Head 64cc 2.055/1.600

The FLOTEK SBC 200cc Aluminum Cylinder Head with 64cc combustion chamber (model 1200-HRAC-505A) is a precision-engineered small block Chevy performance component designed for builders pursuing optimized intake flow and thermal efficiency. This assembled head features 2.055-inch intake and 1.600-inch exhaust valves paired with 1.460-inch valve springs, delivering the flow characteristics necessary for moderate to high-performance street and racing applications.

The 64cc chamber volume is optimized for small block Chevy builds targeting compression ratios between 9.5:1 and 10.5:1, depending on piston selection and deck height. Aluminum construction provides thermal conductivity superior to cast iron, reducing hot spots and improving detonation margin under sustained high-load operation. The angle-plug configuration positions the spark plug at an optimized angle relative to the combustion chamber geometry, enhancing flame propagation and combustion efficiency across the RPM range. All internal passages and valve seats arrive fully finished and ready for installation.

This cylinder head suits builders assembling street performance, road race, or bracket racing engines who require verified small block Chevy heads with proven flow bench performance and reliable chamber volumes. The 200cc intake port volume supports naturally aspirated combinations producing 350–450 horsepower without sacrificing low-end torque. Compatibility with standard small block Chevy manifolds, gasket sets, and bolt patterns simplifies sourcing and installation into existing builds or new engine packages.

Verification of port match, intake manifold compatibility, and compression ratio calculation is recommended before final assembly. TacticalSurplusUSA stocks this FLOTEK head for builders prioritizing quality aluminum small block Chevy components backed by verifiable specifications and genuine OEM-specification construction.