For more than five decades, International Hot Rod Association (IHRA) major contingency sponsor Manley Performance has been providing industry-leading connecting rods and valve springs among many other products to drag racing enthusiasts everywhere. Now in its sixth decade, the family-owned business is showing no signs of slowing down.Hank Manley founded...

Chevrolet has revealed that a potentially faulty batch of valve springs made necessary the engine updates that resulted in its manufacturer's championship points penalty from IndyCar that was announced on Monday."We identified a batch of valve springs that, due to a process change at one of our suppliers, may fracture...