Stock fuel pump pushrods leave a lot to be desired. In fact, they've been known to break at the most inopportune time. To provide you with required reliability and improved performance, ARP has developed these sophisticated and durable pushrods. They're made from premium grade aerospace chrome moly and centerless ground to precise diameter. A hollow core serves to reduce the reciprocating mass, which requires less energy to operate. The less drag on the motor, the more power available to you.