Harken 3371AL V blocks are a game-changer for Grand-Prix racers with their innovative design and unmatched efficiency. Combining axial and thrust bearings into a single set of V-shaped titanium rollers, our engineers have simplified the mechanics to create a lightweight, yet incredibly strong block. Featuring aluminum sideplates, a titanium sheave, and captive titanium roller bearings, our 16T Aluminum V™ Block (Part No. 3371AL) can handle loads up to 16000 kg (35200 lb) without sacrificing smooth easing in light air. Plus, these blocks are easy to disassemble for regular inspection and maintenance.