This series of rotating assemblies will fill the widest array of applications. They are perfect for a hot street machine or the weekend racer. These kits include a Wheeler 4140 forged crankshaft, Wheeler 4140 forged I-beam connecting rods and premium light weight forged pistons for a very strong and durable kit. Wheeler 4140 H-beam connecting rods are also an option on all Sportsman kits for those who require a higher horsepower rating.