Standard connecting rods should be upgraded when power output levels surpass 220bhp or 7200rpm is exceeded for extended periods of time. Cosworth YD connecting rods are forged from high strength steel and feature a strong but light-weight profile. Total weight is reduced by 45 grams per connecting rod on the 2.3L engine. Heavy duty rod bolts are also included. These A-Beam rods are engineered to withstand high rpm and horsepower applications, and are the same as our 300hp Formula Atlantic YDX race engines. Bushed for a floating pin and sold in matched sets of four.