The Speedmaster PCE281.1654 is an aluminum bare cylinder head designed for Mopar Chrysler small-block 318, 340, and 360 engines. Featuring 170cc intake runners and 65cc combustion chambers, this head is built to improve airflow and combustion efficiency over factory cast-iron units, making it an excellent foundation for street performance or racing builds.
Sold as a bare casting, this cylinder head gives you the flexibility to source and install your preferred valvetrain components for a fully custom build. The aluminum construction helps reduce overall engine weight compared to stock iron heads, and the direct small-block Mopar fitment ensures straightforward installation on compatible 318, 340, and 360 applications.