Subject: RE:'94 LT1 clutch, flywheel, etc. by SJW on 2007/11/8 20:52:43
Quote:
To hit the points:
1. The DM does not prematurely fail... it dies at 120k. Done. The problem is that the DM acts much like the spring in a conventional sprung hub clutch friction disc, that wears, so does the DM... sad, really. With that said, yes, the F-body SM will work, just cut .090 off. You will use a Corvette pressure plate and an Fbody friction disc.
2. Are you cranking out 450hp? If not, stock, organic clutches are just fine and maintain easy street drivability.
2a. Whatever you do with the clutch, if you go away from the DM, you will have to get the SM "match balanced." This is when the intentional out of balance of the DM is applied to the SM. If not, serious vibrations will ensue. Sad, really.
3. I have beam plates. I like them. If for no other reason than it makes reinstalling the c-beam that much easier. It also helps cut down on the swing to the right the rear end does under hard acceleration.
I would consider doing u-joints.
Thanks for the advice, Andy. My LT1 has only ~49k miles on it. If the rotational slop in the DM checks out okay and it's otherwise good (not scorched, etc), would you recommend leaving it alone? Considering the labor involved, I'd been planning to just go ahead and replace it while I had it all torn down.
If the F-Body SM wheel is used, where do you remove the .090"? From the pressure plate side, or from the crank-mating surface?
My LT1 is stock, but the original clutch is very near end-of-life at only 49k miles. This is why I'm considering aftermarket alternatives.
I think the beam plates are a no-brainer. I'll go with 'em. U-joints on the driveshaft also sound like a no-brainer, considering it'll be out of the car. Good advice.
