4AGE Stroker Kits The BC stroker kit for the Toyota 4AGE engine incorporates a 83mm stroke steel billet crankshaft. Depending on bore size that you decide the BC kit will take you up to a 1.8L with a safe 83mm bore. The 4AGE kit utilizes premium steel billet connecting rods. As usual each BC kit features custom CP or JE pistons wrist pins and full ring pack. Big time horsepower and torque gains. BC 4340 billet steel crankshaft (83mm stroke). BC 4340 Sportsman or Pro Series connecting rods. CP or JE aluminum forged pistons (any bore size any compression ratio). 5100 Series carbon steel alloy wrist pins. 9310 Series pin upgrade avail. Ductile iron plasma top rings tapered second ring low tension oil rings. Fully system balanced and ready to install. (50% deposit required) For more information visit http://www.briancrower.com/makes/toyota/4age_stroker.shtml