ALUM3251212.300/1.8801.62

Dart Pro1 Aluminum Big Block Chevy Cylinder Heads are designed for serious street performance, mild bracket racing, and marine applications, suitable for over 7,000 RPM and 525+ cubic inch engines. They can also be used on smaller engines with a tight converter. The PRO1 24 Deg 325cc heads offer increased airflow at high valve lift for high RPM, big cubic inch engines, while maintaining compatibility with off-the-shelf pistons, valvetrain components, and intake manifolds. They feature long-wearing Bronze valve guides, screw-in studs, multi-angle intake seats with hardened, radiused exhaust seats, and precision cast ports for outstanding airflow without time-consuming porting. Assemblies include Stainless Steel valves, premium springs, locks, retainers, guide plates, and seals. Heads are sold individually.