Nine inch clutch sources ?

For street use, the slant 6 Van 10 1/4" clutch assembly works just fine. You have to use allen head bolts for clearence but other than that it's a straight bolt-in. I have a local clutch rebuilder make mine a bit stronger than stock by installing heavier springs into the pressure plate. If you're going to flog the thing on the track, you'll have to bit the bullet and get a race only unit.

Thanks, Mark