What bearing to use on G4CS crank 2.3L 4G63 set up?

[eastxcelerate]

I've been researching but couldn't find a clear answer. Can anybody please tell me if I can use the 4G63 main and rod bearings on my 2.3L build. I'm using the G4CS FFWD butchered crank and custom eagle rods with wiseco pistons. Can anybody please verify that so I can order it tomorrow? thanks in advance.

 

[spoonman]

The G4CS crankshaft is a 100mm 6 bolt crankshaft. The block and connecting rods must be for a 6 bolt engine. 7 bolt cranks, blocks, bearings, and rods have narrower journals, these parts are not interchangeable. You need to use 6 bolt bearings, find out from your machinist (FFWD Connection in your case) if you need over sized bearings (.010) for the rod or main journals.

 

[eastxcelerate]

Thanks for the reply. It is standard size. So I can definitely use the 6bolt 4g63 bearings right? Thanks

 

[needsy]

Yes. G4CS => 6 bolt bearings, 4G64 => 7 bolt bearings.

 

[eastxcelerate]

Thanks guys.

 

[red1993gsallmt]

Yes. G4CS => 6 bolt bearings, 4G64 => 7 bolt bearings.

That makes no sense. There are 6-bolt 4g64 cranks also, i have one in my car