The BC stroker kit for the Nissan SR20DE(T) engine incorporates a 91mm stroke, steel billet crankshaft. BC kit will take you up to a 2.35L with a safe 90mm bore. The SR20DE(T) kit utilizes premium steel billet connecting rods. As usual, each BC kit features custom CP pistons, wrist pins, full ring pack and buttons. Big time horsepower and torque gains. Custom Cometic 90mm headgasket is needed with this kit, sold separately.