www.Austin7Ulster.com › Cylinder Block - STEPPED Base Stud 3/8" to 5/16BSF Cylinder Block - STEPPED Base Stud 3/8" to 5/16BSF £3.20 sold out STEPPED Crankcase to Cylinder Block 3/8” BSF to 5/16” BSF. STEPPED Crankcase to Cylinder Block 3/8” BSF to 5/16” BSF. Sold Out Added! You Might Also Like Front Lip Repair Plate £10.00 5/16” BSF Barrel Nut - cylinder block to crankcase studs £2.50 5/16” BSF Nut - cylinder head etc from £0.25 Valve Guide - Stepped Type from £5.50 Clutch lever pin set £3.50 Sold out