Audi 5K piston question

[VWAudiPorscheNut at aol.com]

Hi All! As some of you know, I have a Porsche 924. When looking at the specs, 
I see that some Audi's use the same bore and stroke as me (86.5x85.4mm) I 
also know that there was a 92.3mm crank offered at some point. Im currently 
rebuilding a spare Euro motor I had in wait. Before I spend $500 to get the 
crank knife-edged, I wanna see if there is a way I can make a DIY stroker 
kit. I was thinking if all is true with the above info, and the 92.3mm 5K's 
dont have a taller deck, then the pistons they use must have the wristpin 
moved up to accomodate the added stroke, right? If so, why couldnt I use a 
set of (4) 5K pistons (for the 92.3mm stroke) with my rods, and my crank, 
welded-up and turned down for a 92.3mm stroke? It would yield me 2194cc total 
displacement, from my stock 1984cc. I know the piston speeds would go up a 
tad, as would the thrust-angle of the rods increase, but its a race car, and 
I dont think it would be that bad. A "real" stroker kit is about $1300 these 
days...Im trying to beat the cost a tad. Thanks for any replies to this odd 
request.

Jay

1977 924 (full tilt, 2.1L, elgin cam,msds header,two mikuni phh 44mm carbs, 
2100lbs,944 brakes, roll bar, 150HP....)
1988 Jetta GL (everyday Deutsch flog-hound)
1983 Ford Ranger 4x4 V6 (WHAT? a FORD!sorry VAG doesnt MAKE a truck....)