eBay
For sale I have a Black Diamond Stage 1 clutch. It is used but has only covered 20 miles due to engine issues and the engine was replaced for something different, so is therefore in as new condition.

Included is the pressure plate, friction plate and release or thrust bearing. 

This should fit any smallblock Vauxhall engine with a flat flywheel but please double check before buying.

Here's where it was bought from: http://www.venommotorsport.com/product_details.php?id=42902&manufacturer=Black%20Diamond&category=Brake

Currently on sale there for £140 so grab a bargain!

Any questions please ask, I will try and help. Thanks for looking.