I was playing with the engine design utility on this site: http://www.ozdat.com/ozdatonline/enginedesign/
I noticed something interesting. The RB26DETT stock pistons have a short pin height and a dome for better compression, the pin is the same size as the stock L28 pin and so is the bore. Now combine this piston with an L24 rod and the LD28 V07 crank and you get a long stroke, 9.3:1 compression stock bore stroker engine...I've been thinking and I can't come up with any reason why this wouldn't work...Anyone here have any idea? Seems to me like it would be a stronger, easier to build, turbo (with a 2mm HG) worthy stroker. I can't be the first to come up with this idea, why hasn't it been tried yet? Granted the pistons are expensive, but so is the machine work and such for the L31.