swift gti supercharger what low compression pistons

Where can i get some low compression pistons for my swift gti supercharger Conversion. has anyone got any for sale or know of any companies that i can go to. I know the vitara ones do the job but i cannot find any second hand pistons for sale anywhere please help

Jimny pistons from a g13bb will work, bout 9-1 cr but they are 74mm and 16v so 4 valve pockets

and i have some

Can anyone tell me what cr i will get from vitara 16v pistions looking for 8.1

Can anyone tell me what cr i will get from vitara 16v pistions looking for 8.1

You will need to bore it out and it will make 7.2:1 or there about.
If you machine 1mm off block, you will get about 7.9:1-ish.

Cheers
Atchi

Thanks atchi has anyone got a set of vitara pistion for sale

ebay ycp

when you machine the block you will need to dial the cams in properly with adjustable gears