The one you mentioned won´t work for me (as its for the DOHC 2.0L), but I´m emailing the rep about parts for the SPI.
AleX, would I be able to buy oversize pistons from a parts store? I´ll do some research see what I can find out if you don´t know.
NTChrist ....ahh...no. I don´t think anybody makes them. Batinc used to sell them. But not now. Lower end is pritty simple to rebuild. Crankshaft is really strong. And normally there is no need to regrind it. Just replace main bearings and rod bearings and check the clearance. Pistons and piston rodes is different story. You have to make them custom with custom specs. Just becuz piston shaft wear is different for each engine. If you want to inlarge piston shafts. Well I say good luck. No it´s not as hard as it seems. But hella of a project