CP Pistons and Manley Performance are among the biggest names in high performance engine components. For building a RB30/RB25DET race car on a budget, or just upgrading factory internals, this package is a great place to start. Each package features forged CP Pistons that are designed to support additional modifications such as high lift camshafts and 1mm oversized valves. The pistons are matched with a set of forged Manley Turbo-Tuff I-Beam Connecting Rods that include 7/16" ARP8740 rod bolts. This set is excellent when used for high boost applications and can support up to 1200 horsepower with the upgraded wrist pins option. Package includes complete ring set, standard 5100 wrist pins, and wire locks.