rods:
Tuner Toys D16 - TunerToys H-Beam Connecting Rods
pistons:
Honda-Tech.com: more info on the suzuki vitara g16 pistons
yes they are low comp pistons, 75mm std bore. so far they've held up to 413hp.
D16Y8 motor--->8.9:1 (with Y8 2 layer HG)
D16Y7/Z6 motor---> 8.5:1(Stock head and Head Gasket)
D16A6 and Dohc ZC motor---> 8.0:1(Stock head and Head Gasket)