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 3 Speed Gearbox - Idler Gear Bearing £12.50 1/2" Piston Gudgeon Pin (Clamped Type) £3.00 Set of 14 cylinder head nuts and washers £2.99 Valve Cover Cork Strip Gasket £1.95 Crankshaft Front Angular Contact Bearings (2 off) MJT 1-1/8 £156.00