I know this is an old post but here is an answer anyway. Dellow never made an adaptor for the 4BD1. Jaguar Rover Australia in all their wisdom decided to cast a flywheel cover and bellhousings to suit the LT85 and LT95 boxes. They also used a different starter, flywheel, pressure plate and a spigot bush adaptor. The bellhousings had problems with clutch pivots coming loose. The Lt85 boxes didnt last long behing the 4BD1, the huge torque pulses from the motor killed them fairly quickly. The Aus army specced their Perentie Landys with the Lt95 for that reason. I have seen LT95's handle 454ci big block Chev v8s! Even the R380 gearbox does not like 4BD1's especially turbo motors. There were alot of R380 boxes changed under warranty due to mainshaft failures.
