sorry forgot the tranny. i use the V8 transmission converter , the srt6 converter lock up is not strong and will brake down within a matter of time.
as the tranny i use a case sent to me by Rudy and all the parts ,some from the Gt all together the internal new parts are from 4 different Mercedes transmissions, i do have to move my tranny mount about 1" to the rear. once built with all these tranny's stock parts, the transmission is rated for engine HP of around 750 ,,, and after 656 runs on the drag strip and a daily driver for 10 years , the last five of that ran in the 10's sold it ,it now runs in the high 9 second. banned from the track because no roll cage, one is being installed this year
Oh to answer your question stock converter from a SL 55