SBC 165cc I/E SS Head 72cc S/P 1.94/1.50 Bare

The DART SBC 165cc I/E Stainless Steel Head with 72cc chamber, 1.94/1.50 valve configuration, and straight plug design is a bare cylinder head engineered for Small Block Chevy engine builds demanding high-flow intake and exhaust capability. This iron casting provides the foundation for builds targeting increased volumetric efficiency and cylinder head responsiveness in naturally aspirated or lightly boosted applications.

The 165cc intake port volume is sized to support mid-range to high-RPM power development while the 72cc combustion chamber balances compression ratio optimization with port velocity. The 1.94-inch intake valve and 1.50-inch exhaust valve diameters establish the maximum flow potential for a Small Block platform, making this head suitable for street performance, weekend race, and engine swap applications. The straight plug configuration simplifies ignition system integration on non-OEM installations. As a bare head, this component arrives without valves, springs, gaskets, or hardware, requiring machine work and complete assembly before installation.

Builders selecting this cylinder head are typically pursuing increased airflow for engine performance upgrades, engine rebuilds with modern specifications, or comprehensive engine swaps where OEM Small Block architecture is the baseline. The iron construction resists thermal cycling and provides a durable, cost-effective platform compared to aluminum alternatives. Proper valve and spring selection, port matching, and professional assembly are essential to realizing the head's flow capability and ensuring reliable operation across the intended RPM range.

Small Block Chevy heads with this chamber size and port volume are established benchmarks in the performance engine community, offering proven compatibility with popular intake manifolds, carburetor and fuel injection systems, and exhaust headers designed for SBC applications.