K20A / K20Z Stroker Kits The BC stroker kit for the Honda/Acura K Series engine platform incorporates the wider B16A bearing (.935" width) that offers more surface area than the .740" width bearing found in the OEM K Series crank and rod combination. The added surface area increases bearing life especially at extended rpm. Note: This kit requires custom connecting rods (modified BE bore and BE width). BC 4340 billet steel crankshaft (92mm or 102mm 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. Features aluminum buttons/rail supports (not spiral locks). ACL Race Series rod and main bearings included. Fully system balanced and ready to install. (50% deposit required) For more information visit http://www.briancrower.com/makes/honda/k20ak20z_stroker.shtml