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 Deep Head Standard Oil Sump Bolts BSW 1926-1939 £2.25 1/2" Piston Gudgeon Pin (Clamped Type) £3.00 Crankshaft Front Main Bearing - Ball MJ 1-1/8 (1923-1933) £56.00 +020 Thou set of shell Big End Bearings for late engines £49.99 Sold out Bell housing / Crankcase to Gearbox Stud BSF or BSW £1.75