Hi guys.I am in the process of forging my engine and I need new main and big end bearings.What do you suggest,which one to use,and where to find them?

you need to Plasti gauge (get the measurements)the crank first before you start thinking of ordering the bearings then give one of the specialists a call.

Machine shop did measuring for me,and they told me that everything is in OK condition.Now I need some uprated bearings in standard size.

Just be careful as most cranks from production had a variance in the Bearing sizes on the same crank.
It's common to see blue yellow and red mix .

Allow for thermal expansion as well so don't set them tight,if anything slightly loose means the engine will have a much reduced wear rate and longevity.

OK thanks.Where can I find those colored marks in order to be sure what bearings I need?

The issue at the moment is that Fiat don ant tell you what they will send.

I have ordered blues and got reds and vice versa .

I get them from Barbz at torque Italia now as its easier.

On the reverse of the shell there's markings.

if you still have your old bearings and the crank as you have said is all good then just send the numbers of to countrycruising (FCSS).

hes normally got a set of reds in if your after the standard size

The number of the bearing says that they are standard size.I can not find any sigh of color on the back side of the bearings.
But there are few more numbers "CL 85",and under that "901".I hope that helps to decode exactly which are these bearings.

One more question,is it ok to use stock bearings on big power applications?I am asking this because my car has GT2871 and everything that goes along.I drove it with only 1,2 bar boost until now.I hope after forging that engine will be capable to work on higher boost ,like 1.5 bar or similar.

We run 2.0bar on stock shells.
600bhp+ so you'll be fine.

Barbz is cheapest and will answer all the questions.
Send him a pm.

Ok ,so I am good with stock bearings,thanks for sharing the experience.I hope to see maybe around 400 bhp so I am not into danger zone .
I sent PM to Barbz,so I hope to receive reply soon from him.
Thanks a lot again.

Agreed. Barbz is the one to speak to, as he has the most experience and best track record on the coupes.

Ross

did you manage to source bearing?

Sorry I was away for a few days.I made a contact with Barbz.I hope we will menage to source those bearings so I can carry on with assembling.