The reason why the V8s cost so much for a clutch job is that if it needs a new flywheel, and it frequently does, that alone lists for about $800. I don't know how true it is, but it seems that the dual mass flywheels in the V8s aren't supposed to be resurfaced.

I was quoted anywhere between $900-$1300 for the clutch job alone, but after the new flywheel it ended up around $1900.