www.Austin7Ulster.com › Block Base Shim / Spacer Plate (Thin Type) Block Base Shim / Spacer Plate (Thin Type) £8.99 sold out Aluminium spacer plate, for when your pistons are too close to the top of the bores. Thickness approx. 0.57mm / 0.023” Aluminium spacer plate, for when your pistons are too close to the top of the bores. Thickness approx. 0.57mm / 0.023” Sold Out Added! You Might Also Like Top Fan Pulley (for Magneto engine) £39.99 Stainless Steel Long and Short Side Water Manifold Studs 5/16 BSF £5.50 Sports Alloy Valve Chest Cover £40.99 Sold out Crankshaft Rear Main Roller Bearing MRJ 1-1/4 (RHP) £114.00 Repair Plate for Side Water Manifold £11.99