Imagine that you could get the advanced features of Dart's championship-winning aluminum big-block heads in a cast-iron version. Now you can - Dart's Iron Eagle big-block head delivers the performance you expect from Dart at a price that fits every budget!Dart designed the Iron Eagle heads for street performance, bracket racing, oval track competition, tractor pulling, and high-performance marine applications. They developed two rectangular ports: a high-velocity 308cc intake runner that produces incredible torque and a 345cc version that's perfect for big-inch, high-rpm Rat motors. The Iron Eagle's raised exhaust port outperforms its cast-iron competition but still fits most standard headers. Our dedicated tooling allows Dart to cast the ports with incredible precision so you get maximum flow without spending big bucks on porting. They rotated the valve angles two degrees and duplicated the efficent heart-shaped combustion chambers originally developed for their championship-winning Race Series aluminum heads.
Iron Eagle big-block heads have standard features you won't find in factory castings and aftermarket replacement heads. Premium bronze valve guides, multi-angle intake valve seats, and hardened and radiused exhaust seats are included with every Iron Eagle head. When you want premium performance at an economical price, demand Dart Iron Eagle heads!
Bolt-on Compatability: 2° rolled valve angle and standard spacingHeart-Shaped 119cc Chambers: Improve combustion efficiencyMulti-Angle Intake Seats: Compatible with unleaded gasolineExhaust Ports Raised .300'': Improves flow (requires 1'' longer head bolts next to exhaust port)Manganese Bronze: Intake valve guides extend cylinder head lifePhosphorous Bronze: Exhaust valve guides resist heat produced by low-compression engine