1977 Triumph TR7 Engine Blocks
- ARP®2-Bolt Main Stud KitTriumph TR7 1977, 2-Bolt Main Stud Kit by ARP®. There are many important reasons to use ARP main stud kits including the elimination of main cap walk and fretting as well as protecting the threads in your engine block. All kits come...Designed and manufactured using innovative technologiesMade with maximum safety and reliability in mind$67.68