SBC 180cc Alum Cyl Head 64cc 2.02/1.60 A/P Assm

The FLOTEK SBC 180cc Aluminum Cylinder Head with 64cc Chamber, 2.02/1.60 Valve Assembly (Part Number 101-505) is a fully assembled small-block Chevy performance cylinder head engineered for builders seeking increased intake flow and refined combustion characteristics. This aluminum casting delivers 180 cubic centimeters of intake volume paired with a 64 cubic centimeter combustion chamber, optimizing the air-fuel mixture dynamics critical to engine efficiency and power delivery across RPM ranges.

The valve configuration features 2.020-inch intake valves and 1.600-inch exhaust valves—proven diameters for small-block Chevy applications—mounted in an angle-plug configuration that promotes optimal spark positioning within the chamber. Spring tensioning is set at 1.460 inches, providing the correct valve control and lift capability for both naturally aspirated and moderately boosted engine builds. The aluminum construction reduces overall engine weight while maintaining the thermal conductivity necessary for consistent cylinder head temperature management during sustained operation.

This cylinder head assembly suits engine builders, restoration specialists, and performance enthusiasts working with small-block Chevy platforms in street, strip, or marine applications. The 180cc intake volume strikes a balance between low-end torque response and mid-range horsepower production, making it compatible with a broad spectrum of displacement and camshaft combinations. Pre-assembly eliminates valve-lapping uncertainty and reduces installation lead time, allowing builders to focus on gasket sealing, torque-sequencing, and final dyno validation.