High-quality, heavy duty rod sets come complete and ready to install. Set includes front and rear rods, crankpin and nuts, steel cages and roller bearings. Rods are deep-forged and heat-treated, 0.120" wider than stock in the I-beam section and feature rod-to-rod clearance to accommodate strokes up to and including 5". Crankpin has two oil holes and four slots ground on each side of the throw ends of the rods to help maintain the oil film on thrust faces. Installation of rod sets may require additional clearancing of flywheels and cases..