www.Austin7Ulster.com › Block Base Shim / Spacer Plate (1mm Thick) Block Base Shim / Spacer Plate (1mm Thick) £8.99 sold out Aluminium spacer plate, for when your pistons are too close to the top of the bores. Thickness 1mm Aluminium spacer plate, for when your pistons are too close to the top of the bores. Thickness 1mm Sold Out Added! You Might Also Like Oil Jet - 2 bearing engine £7.50 Valve Collets (Pair) £2.50 Inlet/Exhaust Manifold Stud (Long) £2.75 Cylinder Block Base Stud (EN16T) - All models 5/16BSF Sale Price: £2.20 Original Price: £2.50 Sale Valve Cap / Cup ( Single Spring Type) from £2.40