How big can you go with a 07K?

[paracaidista2.7t]

Displacement wise? I know there aren't any stroker cranks, but how big can you bore it, realistically, for a turbo motor? Also, has anyone tried this swap in a B5 or C5? I am intrigued by the VR6, but the 5cyl. just freaking sounds cool.

[alxdgr8]

I don't think there's any room to bore, maybe 0.5-1mm from when I was looking at it at Iroz. Maybe offset grind the crank but not sure about block clearances.

[glibobbo21]

def .5. 1mm is getting sketchy.

[Hank]

These are still short deck 220mm blocks, so 2.5L is probably as big as it gets. As others have said, 83mm is as big as I would want to go.

[paracaidista2.7t]

So, about 2540cc. I doubt that the extra 60cc or so would be worth the compromise, IMHO.

[All_Euro]

Eurospec says this about their 5 Cylinder Billet Crankshafts, "Fits all inline 5 Cyl Audi and VW Petrol engines."

http://www.eurospecsport.com/products/c ... shafts.htm

True in this case?

[Hank]

No, the old five cranks would not work.