Need some flywheel differences from 454 guys.

[Chevy3+3]

First of all I have a vibration/shudder from around 1600-2000 rpms. It is present in any gear. It is present in neutral with clutch pedal in or out it makes no difference. My truck was originally a th400 truck before the swap and I had no vibrations. I installed a new Luk flywheel for an '88 V30 4 speed truck. I bought a new Luk clutch kit for the '94 Chevy.

It feels like my vibration may be related to the flywheel. So my question.....is the pressure plate for the '94 balanced to be used with a '94 flywheel? The '88 454 is externally balanced and the '94 454 should be internally balanced but I didn't think it had anything to do with the pressure plate.


Any thoughts?