what engines can i use in my 131 without big mods

[sikkane]

hey i got a fiat 131 mirafiori with a 1.6l engine...  i have tryed long to get my hands of a 2l tc engine for my fiat... but its soo very rare in norway/sweden.. is there any engine who will fit my fiat without big mods? i heard fiat croma turbo engine fits if you change oil pump and oil sump  do anyone know it thats true?

thanks
h?vard ner?sen

[mirafioriman]

The Croma engine is basically a 2 litre twin cam engine modified for the front wheel drive Croma so should fit. You may need to change a few things. You should be able to find these for sale even if you have to ship them from other places in Europe.

[PB131]

The Croma engine as well as other transversely fitted twin cams (but not the Strada/Ritmo) had the inlet and exhausts the other way round to the 131 so the exhaust will need to be custom made I'd think.

[djape1977]

definately. any transversly mounted engine after ritmo has its engine head rotated 180" so intake and exaust are on oposite sides of what you need. i don't claim it can't ne done, but it's a big job. also, if i remember correctly, all croma 2l engines have a counter rotating balance shafts which render them unusable for rwd application, since they can't be fitted to a 131 geargox.
basicaly, only engines that you can use with no serious mods are ones from 131 and 132 and mk1 ritmo.
depending on what you want to achieve, perhaps you should consider tweaking your 1,6 engine, if it's a twincam. 113hp produced by stock 2l engine can be extracted from 1,6 with no too much trouble.
perhaps you should contact markoh from this forum, he's from finland. if i remember correctly, he has a lot of bits and pieces for tuning fiat/lancia twincams

[Walezy]

You can try to fit croma engine and not all of them had balancer shafts(i have such block in my garage) so it is possible to do it but it will be easier to get 132 engine. In case you need it then i have such engine(but not assembled) that you can fit into your car.
If you wish to take care of moving exhaust on the other side then i would strongly suggest of using 16v head as the work involved is nearly the same and the results are much better than with 8v head.

[PB131]

I don't think any of the Croma engines had balancer shafts. It was the Lancia (Thema etc) twin cams that had the balancer shafts.

[djape1977]

well i had a 1990. croma i.e. and it had balancer shafts. in fact, only fiat/lancia twincam from that generation that i've seen without balancer shafts was some spiced up version of tipo, 1,8 or 2,0

[jasonh131]

just leave the balancer belt off,most do on intergraly and thats an idea .
 you need to modifiy input shaft on gearbox ,for lack off spigot bearing on fwd engines.
but as weve seen anything will fit from a rx8 wankel to a dino v6

[turb]

The question is, how much time and money do you have?  And what kind of performance do you want when finished?  Yes, the basic Croma engine fits, with (more refined) or without (a lot lighter) balancer shafts, different markets were supplied with the two options.  Unfortunately, as stated above the heads were turned 180 degrees so inlet and exhaust manfolds are situated on the opposite sides of the engine.  There is a lot of work required to make this set-up work in a 131 engine bay,  but it will work, engine mounts, gear box (early 131 OHV bell housing for balancer shafts) will bolt up.  Yes, the sump will need altering.

I think there are easier ways to put horse power in your 131 that this option.

If you look at the "Introductions" category of this forum under "Yet another NZer" the photo shown is of a Thema engine with Balancer Shafts in the process of being fitted to a 131.

Jeremy

[131 Lover]

Hi H?vard!
There are still 2l engines in Sweden to reasonable prices! 131,132,Argenta,Beta that fit with a little work!
I have seen 2l for 2-3000Skr that are in very good condition, There are at scrap yards, seen an underpart that only done 110000 km for 1200Skr ..

If you need any help  just let me know!
Alf Andersson"131 lover"

[Walezy]

There is a problem with starter motor which would be in place of one of the balancer shafts so it may not be that easy.

[turb]

The early overhead valve 131 had the starter motor mounted on the opposite side. The bellhousing is identical apart from this, so if used no problem with balancer shaft and gets the starter motor away from the exhaust heat.
Jeremy