The "conversion" gasket set is the British term for the bottom-end gasket set. It includes the gaskets below the head gasket. This one fits all 850, 997, 998, 1098 and Cooper S blocks with removable tappet cover plates. It includes both early and late timing cover and front plate gaskets to cover A-series and A+ engines. Not included is the rear main oil seal (13H2934 red or LUF10005 black), which must be ordered separately.
For solid back blocks with no tappet covers, see set SGK0021.