The racers would probably be faster to put money up for a clutch type LSD, while he helical would have a potential bigger market. Either option would be an improvement really.
Well if the pistons have the raised pin height for the added stroke then I would assume they would have been marked for 8.5:1 CR w 92mm stroke. If not it'll raise from 8.5 to 9.3ish..
I got a stroke crank super cheap recently so we're going to have a little fun with it and see exactly what it does. Enough hearsay, I want it on paper.
Unless you want to throw away your money do not purchase one from ebay, i personaly have bought countless after market ones and none have made it past a few runs :(
your better off buying a used o...