Adam, The "XM " denotes a MCT ( mitchell Cotts ) engine built under licence for Land Rover. They build a 46D2 , 46D3 46D5, 46D7 ALL 4.6HC short motors and a 46D1 AND 46D4 stripped engine. It is probably built from mainly OE parts left over from the end of production at Solihull and would b...
