Vauxhall/Opel 2.0L 16 valve, 2 bolt main, ARP Main Studs 209-5401ARP Vauxhall and Opel Main Stud Kits, There are many important reasons to use ARP Main Stud Kits, for Vauxhall and Opel including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block.

Here's just what you need to secure a bellhousing in place. The studs are designed with a radiused head to position the bellhousing and accept nuts without the fear of cross-threading.