The EZ heads are designed for A body cars. They have stock low exhaust port location and bolt patterns. Most all standard exhaust headers will work. This also means that if you want Indy power and want to use your existing stock exhaust headers, this is your head. Like all Indy heads, the EZ head features the long valve design and cast aluminum valley plate. More intake volume (270cc 440 SEZ) equals more power.
The nick-named Little Easy head is the same cast aluminum head as the 440 EZ-1 with full internal CNC porting with a high torque 295cc Max intake runner and high velocity low exhaust port. Must use 440-1 external shaft oiling. Take the iron 906 combo off and pick up 100 horsepower. An A body miracle!