The main advantages of using Mopar Indy cylinder heads are power and durability, according to HotRod.com. Indy cylinder heads can increase horsepower and torque, so the vehicle has more power. They are often desired for racing applications and are available for drivers who wish to modify their engines to stock performance.
Indy cylinder heads offer several benefits over factory-installed cylinder heads, including better port designs and increased port volume, better valve design and better chamber design, notes HotRod.com. Indy's heads have efficient water jackets to prevent hot spots in the head. In addition, they are moderately priced and increase horsepower from 400 to 550, which can improve the performance of small-block engines.