Hm... How about this?
L28 block bored .040 over, L24 crank, 87mm Mahle PowerPak RB30DET Pistons (32.10 pin height), 140mm FJ20 rods or aftermarket H-beams. This combination yields 2629cc's with a 1.90 Rod/Stroke ratio. The pistons will stick out the bore 1mm, but could be milled or use a 1 or 2mm head gasket.