I guess I'm looking at it logically...
Most older cars, like A bodies I guess, I think, ran a 621 bellhousnig... I think...
and since the 606 is basically the same thing, with just a relocated fork ball stud... then "logically" for example, a 75 Corvette clutch and flywheel listed for the smaller bell and flywheel should fit just fine...
I believe that most of the clutch components are pretty much just your basic GM stuff, nothing special... so this stuff should fit... but I'm still a beginner at all this, so I could be wrong...
IF you guys get the urge to look into it and hopefully reaffirm this theory, it wuold be greatly appreciated... I just rummaged through the Autozone website through vehicle specific stuff and found these matching pieces for a 75 Corvette with a 350... As far as their basic descriptions, a flywheel listed for a 10.4 disc should be the 153 tooth and the clutch listed under a 10.4" should be the same designation and should match up...
I'm just running a standard 1st Gen SBC, 2-piece rear seal... Just a basic GM setup, should work...
I'm planning on buying these parts probably Saturday, so I guess I'll find out tomorrow...
Hopefully someone will give me some encouragng insight...
This logical thinking thing sometimes works, but sometimes it doesn't...