www.Austin7Ulster.com › Cylinder Block - STEPPED short manifold Stud 5/16"BSF to 1/4" BSF Cylinder Block - STEPPED short manifold Stud 5/16"BSF to 1/4" BSF £2.90 STEPPED stud 5/16” BSF to 1/4” BSF. STEPPED stud 5/16” BSF to 1/4” BSF. Add To Cart Added! You Might Also Like 1 x Valve Guide - Parallel Type from £5.00 Centre main engine bearing housing Tab Washer - 3 Brg Engine £1.10 Fan Belt (Coil Engine) £8.50 Thin Fan Belt for Mag Engine £9.99 Rear Engine Bearing Housing Gasket (Thin) £0.50