Magnus McLaren Engine Main Bolt Washers for V8 M838 and M840

Description Magnus McLaren Engine Main Bolt Washers for V8 M838 and M840 (fits all McLaren V8 engines) Washers  Main Bolts Main Washer Kit : 10 Large sealing washers and 10 Small sealing washers Magnus Motorsports washers are designed specifically for the OEM-style main bolt configuration, ensuring proper oil sealing while maintaining correct fastener preload. These washers are manufactured to exact factory specifications and are a direct replacement for the original main bolt sealing washers. Their bonded construction prevents oil migration around the main bolts, eliminating the leakage issues that can occur when using stud conversions or worn OEM washers. Used exclusively in our 1300hp crate engine programs, these sealing washers are proven in extreme track and high-power applications while requiring no block modification. When paired with main bolts as originally intended by the manufacturer, they provide reliable sealing, consistent clamping, and long-term durability under high load conditions. Features: Direct fit for all McLaren V8 engines Designed for high-boost and motorsport use Precision manufactured and race tested Applications: All McLaren M838 and 840 V8 engines Part Number: MMCENG7204-009 Notes:Professional installation recommended.  20 New washers.