ERR 2943 - Flanged Cylinder Head Bolt, 66mm long Landrover 90/110 Defender, Range-Rover 'Classic' and Discovery 1 £0.75 Quantity: at £0.75 each Add To Basket 3 in stock. Flanged Cylinder Head Bolt, 66mm long This is the later flanged, non-retorque type Cylinder Head Bolt for the Rover V8 engine, late 3.9, 4.0 and 4.6 variants. Can be used on earlier engines. They are non-retorque, i.e. one use only. 14 off required per engine.