Magnus Super Alloy Valves for McLaren V8 M838/M840

Magnus Motorsports stainless intake and inconel exhaust valve set for McLaren V8 engines ensure stable operation with aggressive cam profiles, elevated boost levels and sustained high RPM.

Vehicle Fitment:
McLaren 3.8L & 4.0L V8 Twin-Turbo
• M838T: 625C, 650S, 675LT, MP4-12C, MSO 688 HS
• M838TE: 540C, 570S, 570GT, 600LT, 620R
• M840T: 720S, 750S, 765LT, Senna, Elva, Speedtail, Sabre
• M840TE: GT, GTS

Purchase Includes:
(16) Stainless Intake Valves
(16) Inconel Exhaust Valves

Note:
Springs and retainers are NOT included.
Professional installation recommended.

More from Magnus:
Engineered specifically for the McLaren 720S M840T engine and its associated engine family, Magnus McLaren Stainless and Inconel Valves deliver the durability and precision required for high-RPM, high-boost, and motorsport-level operation. Designed using Magnus’ proven race-engineering philosophy, these valves eliminate the limitations of factory components when power and engine speed increase.   Although McLaren offers a very durable valve from the factory when there are valvetrain collisions because they are sodium filled and super hard alloy, they will break the heads off the stems and destroy your entire engine.  Magnus Valves are stainless steel on the intake side and high temperature resistant Inconel on the exhaust and are extremely durable. If there is a valvetrain collision the head of the valve will stay attached resulting in only a bent valve and not a destroyed piston or combustion chamber.  Worth the price of not destroying the entire motor.

Manufactured from premium materials and optimized for extreme thermal and mechanical loads, these valves ensure stable operation with aggressive cam profiles, elevated boost levels, and sustained high RPM. Validated through real-world competition use, Magnus McLaren Valves are a critical supporting component for all our McLaren engine builds. Designed to eliminate common valve-related failures found in McLaren V8 engines. Don’t rebuild your engine without upgrading the valves.

Features:
• Direct fit for McLaren 720S M840T and 838 engines (all V8)
• High-strength construction for high-RPM operation
• Improved durability under high boost and elevated exhaust temperatures
• Eliminates common valve failures associated with McLaren engines
• Designed for motorsport and high-performance applications
• Precision manufactured and race tested