Vargas VTT S55/N55 EWG Cast Aluminum Valve Cover

The Vargas Turbo Technologies Cast Aluminum Valve Cover for BMW N55 and S55 EWG engines is engineered for enthusiasts seeking improved durability, performance flexibility, and long-term reliability. Designed as a cost-effective alternative to VTT’s billet valve cover, this cast aluminum version eliminates the well-known weaknesses of the factory plastic valve cover while maintaining a lightweight design and refined appearance.

Constructed from 6061-T6 cast aluminum, this valve cover offers excellent heat resistance and structural integrity, making it ideal for high-performance and track-focused applications. The factory PCV system is fully removed, allowing complete customization of your crankcase ventilation setup. This design is especially beneficial for modified vehicles, as it provides better control over crankcase pressure and helps prevent oil-related issues when paired with an external PCV solution.

This valve cover is fully baffled to reduce oil carryover into the catch can and is particularly well-suited for single turbo conversions due to its improved clearance and heat resistance compared to the factory cover. Finished with a durable powder-coated surface, it enhances both functionality and engine bay aesthetics while maintaining a weight nearly identical to the OEM unit.

Proper PCV configuration is critical when upgrading to an aluminum valve cover. An external PCV setup is strongly recommended to ensure proper crankcase vacuum, turbo drainage, and gasket longevity, especially on S55 engines.

Key Features

Cast 6061-T6 aluminum construction for strength and heat resistance
Powder-coated finish available in multiple colors
Lightweight design comparable to the factory valve cover
Factory PCV system removed for full customization
Fully baffled ports to minimize oil ingestion
Improved clearance and heat resistance for single turbo applications
Exclusive cast aluminum valve cover design from VTT

What’s Included

Cast aluminum valve cover
All required mounting hardware
U.S.-made Viton valve cover gasket

Installation Notes

Hand-tighten fasteners during installation
Warm the engine, then re-tighten by hand
Do not overtighten, as excessive torque may cause cracking

PCV System Recommendation

An external PCV solution is strongly recommended
A low-side PCV setup helps create crankcase vacuum at idle
Blocking cylinder head ports is advised to reduce gasket stress and prevent boost from entering the crankcase

Fitment

BMW N55 EWG Engines
BMW S55 Engines

Platform compatibility includes multiple BMW models equipped with N55 or S55 engines using electronic wastegate configurations.