Harken's 3366AL V block introduces a groundbreaking advancement in their loop block series, specifically designed for Grand-Prix racing. Combining axial and thrust bearings into a single set of durable V-shaped titanium rollers, Harken engineers have simplified the mechanics, producing a lightweight yet robust block with unmatched efficiency at high loads. The aluminum sideplates, titanium sheave, and captive titanium roller bearings make disassembly for inspection and maintenance quick and easy. The wide sheave allows for multiple lines for sail changes or a single, high-load larger line that requires a small deflection. Introducing the 1.5T Aluminum V™ Block — Wide (Part No. 3366AL) with a 47mm sheave diameter (1 7/8 in), capable of handling maximum line diameters of 8mm (5/16 in) and a working load limit of 1500kg (3300 lb).