BBC Iron Heads

Dart Iron Eagle big-block cylinder heads are made of premium cast iron for greater strength and durability. Dart has developed more efficient port designs with improved velocity and flow capabilities. The combustion chambers and ports have been redesigned for greater breathing characteristics and more controllable combustion.

BBC Aluminum Heads

Dart has aluminum big-block cylinder heads for virtually every application from street performance to top level professional racing. All Dart aluminum heads are cast from aerospace C355-T61 alloy for superior strength and durability. Our proprietary Speed Flow Technology has produce ports which flow more air and promote excellent fuel atomization for maximum power and efficiency.