31-0055 92-99 crankcase assembly, STD bore. Black

S&S Superstock crankcases for 1992 to 1999 Evolution Big Twin models are cast in black from 356-T6 aluminium and are far stronger than the OEM casting. Pre-assembled with sprocket shaft Timken main bearing races, cam needle bearings, and a pressed and line-honed pinion shaft bearing race, they include cylinder studs, nickel-plated bolts, crankcase fittings, oil pressure sensor, timing and magnetic drain plugs, and an alternator stator plug clamp screw. The ported breather maximises oil scavenging, and the cases are clearanced up to five inches for stroker builds. An OEM 26053-92 or S&S oil pump must be used with these cases. Replaces OEM reference 26053-92.