I know the rods are shorter but the pistons are taller so the overall height is the same from at 192mm. I will have to machine a pocket for the valves. I took a punt on a brand new set of Woosner pistons and brand new PEC rods + gasket and ARP bolts for £200.
The pistons have a machined chamber in them but are not dished like the 16v turbo ones. Not sure if this matters. I can get the chamber in the 8v pistons to match the same volume as the dish in the 16v ones so compression should be the same 8.0 to 1.
Any advise much appreciated.