lpg overheating problem plus weird 2lt engine fitted

[bigjay]

hi .right i bought a lpg van in good nick and need it sorted asap for work and fun .anyway shes a r reg 2ltr petrol lpg swb van .the engine is a double over head cam engine with 2 coil packs in front of the engine.never seen this engine before but in only some similsr age vans that are lpg .anyway at the moment the engine gets hot .runs mint .sometimes starts then sometimes not .drives ok no probs .there is a bit of water coming out the exhaust but then the van has been sitting around a year .im wondering if thermostat is ballsed up etc etc .just confused what to do 1st .maybe headgasket?.if you know anything on these engines please let me know .i wanna get bitts for servicing etc etc . someone changed the running gear into this van from another i think as my v5 states is as deisel .so getting bits for the engine baffles me.any help would be mostly appreciated.
thanks
jay

[bigjay]

anyone

[AndyG]

Well this engine is actually correct for a petrol smiley Transit

What's the registration We could look up the factory specification for you

When you say the engine runs hot, do you mean the gauge goes into the red

A bit of water out of the exhaust is normal

If this isn't the original engine, then we'll never know the true mileage
What's the radiator like