1GRFE Stroker Kits The BC stroker kit for the Toyota 1GRFE engine platform incorporates a 103mm stroke steel billet crank choice of BC 625 Pro Series or Sportsman Billet rods. Depending on bore size that you decide the BC kit will take you up to a 4.66L with 98mm bore sleeved block. As usual each BC kit features custom CP aluminum forged pistons 9310 alloy wrist pins ring pack and buttons. Available in any desired bore and compression ratio for use in turbo or normally aspirated. BC 4340 forged steel crankshaft (103mm stroke). BC 4340 Sportsman or Pro Series (BC625 ) connecting rods featuring ARP premium fasteners. 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/1grfe_stroker.shtml