Technical Did someone swapped the engine?

[SvetS]

Hi guys!
Sooo I have 176 MK1 1.2 75... Yeah and as I can see I need a engine rebuild... And at the same time the price is high enough to just put another motor, but I want something like the VW and Opel 1.8 90HP. It's not much of an upgrade or something they are just much tougher and with a lot better cooling...
I mean I want something like the 1.8 90hp or something in this range... 1.8 to 2.0 max 100hp.
I forgot to mention I have 1.8 90hp engine from Opel wich is perfect...

 

[blu73]

I'm confused, the fiat fire engines are nothing if not tough, like all engines just needs to be serviced properly and they last pretty much forever..
Swapping for a 1.8-2.0 is just gonna end up making the car heavier, handle rubbish and be no faster at all with only 100hp to play with. 90hp from a 1.8 is pathetic!

If the engine isnt viable to repair i'd suggest dropping a more modern 1368cc 16v fire engine in - use a DET3 piggyback on the existing ecu to run it and you'll have a car that weighs almost exactly the same and has about 100hp, revs highly and more freely. The engines are really common and cheap and a DET3 is only £150 and simple to wire up.

What makes you say the P75 engine is weak and has poor cooling exactly?