Bore = 4.125 Stroke = 4.375 Displacement = 117 CI Cylinder head design = 2 valve Cross Wedge Valve sizes = 2.0 Intake and 1.6 Exhaust Pistons = Forged with no notching, common front to rear, .927 wrist pin diameter V angle = 56.25 degrees Cam Drive = Gates 30 mm wide system with automatic tensioner Valvetrain = Hydraulic roller tappet with pushrods Rocker arm ratio = 1.7:1 Crankshaft = Forged and nitrided one piece Rod type = 7.400 forged split design with 7⁄16 bolts Bearing Type = Tri metal plain style rod and main Main bearing journal dia.= 2.36 Rod bearing journal dia. = 2.20 Oil system = Dry sump with internal gerotor pump Induction and Engine Management = 2-1⁄16 throttle body with S&S; closed loop VFI Fuel injectors = 34.8 lb⁄hr 3 bar fuel pressure Complete engine weight = 163 lbs Crank and rod assembly weight = 42.75 lbs 4 bolt engine mount system using 7⁄16 fasteners Compression ratio = 9.75:1