For minis with original inertia type starter. The block hose is 12" long and the filter hose is 14". If you want longer hoses see clubman kit
MOC100102 block hose 14.5" long and 24" long filter pipe. Pre engaged starter type cars upto 1992 require a longer hose kit
MOC1015. Cars with a 12A engine number require
MOC1014 .
If a pre engaged starter is fitted (integral solenoid) the oil cooler has to be mounted closer to the alternator resulting in longer pipes(MOC1015). A-series engines up to 1992 had a block union size of 5/8" UNF and filter head union size of 1/4" NPT.
From 1992 on, union sizes changed on all engines with a 12A prefix number and became universal at 11/16" UNF. The filter head for these is recognisable by casting part number LPX10027.