RB20 piston rings in an RB30?

[Leeroy_25]

I have been having murder trying to find a supplier for std non turbo rb30 piston rings or even some aftermarket ones that will fit straight in the stock non-turbo pistons.. I went to ACL and apparently they have stopped doing them.. But a UK distributor told me they had sme RB20 rings that were listed as fitting the RB30?? Can someone confirm if the RB20 rings are in fact the same size as non turbo rb30 ones?? I am guessing more likely the same as turbo rings? If they don't do the job can someone please let me know where to get rings in aus or whereever! Anyone know where there is some left over acl stock??

Thank you
Lee

[hakhawk]

78mm bore on rb20, 86mm bore on rb30, yeh, id say they wont fit.

[Swordsy]

RB20 - 2.0 L (1998 cc, bore: 78.0 mm, stroke: 69.7 mm)
RB25 - 2.5 L (2498 cc, bore: 86.0 mm, stroke: 71.7 mm)
RB26 - 2.6 L (2568 cc, bore: 86.0 mm, stroke: 73.7 mm)
RB30 - 3.0 L (2982 cc, bore: 86.0 mm, stroke: 85.0 mm)