What is the primary benefit of using 18.8 alloy studs?

The 18.8 alloy offers significantly higher tensile strength and fatigue resistance compared to standard materials. This allows the studs to maintain consistent clamping force on the cylinder head, even under extreme operating conditions like high boost and heat, preventing leaks and ensuring engine integrity.

Are these studs a direct replacement for the factory head bolts?

Yes, this set is designed as a direct replacement for the factory head bolts on BMW S55 engines. The precision rolled threads ensure a proper fit and connection, making installation straightforward when following the correct procedures.

What is recommended for installation?

It is crucial to follow the manufacturer's specific torque specifications and installation procedures when installing these cylinder head studs. Proper torque sequencing is essential to ensure even clamping force and prevent damage to the engine block or cylinder head.

Wagner Tuning BMW S55 Cylinder Head Stud Set 18.8 P102081410

Name: Wagner Tuning BMW S55 Engine Pro-Series 18.8 Cylinder Head Stud Set
Brand: Wagner Tuning
SKU: wagner-tuning-wagner-tuning-bmw-s55-engine-pro-series-18-8-cylinder-head-stud-se-t14-508752
Price: 488.51 USD
Availability: InStock

Wagner Tuning BMW S55 Engine Pro-Series 18.8 Cylinder Head Stud Set

$488.51

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Wagner Tuning BMW S55 Engine Pro-Series 18.8 Cylinder Head Stud Set.

Key Features

Fits BMW S55 engines.
Constructed from a high-strength 18.8 alloy for improved tensile strength and fatigue resistance.
Precision rolled threads offer enhanced durability and ease of installation.
Designed to maintain consistent clamping force under high boost and temperature conditions.
Addresses potential gasket failure points found in stock head bolts.
A critical component for engine rebuilds and high-performance applications.

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Product Details

The Pro-Series 18.8 cylinder head stud set from Wagner Tuning is built for the demanding needs of BMW S55 engines. These studs are made from a high-strength alloy, specifically chosen for its ability to withstand the extreme pressures and temperatures found in high-performance applications. When you're pushing your S55 beyond stock limits, the factory head bolts can become a weak point, leading to potential gasket failure or other issues. This upgraded stud kit addresses that concern directly.

Wagner Tuning uses a specific 18.8 alloy for these studs, which offers a notable increase in tensile strength and fatigue resistance compared to standard fasteners. This means they can maintain consistent clamping force on your cylinder head even under significant boost and heat. The threads are precision rolled for improved durability and easier installation, ensuring a solid connection without damaging the block or head. This is a well-built component designed to keep your engine sealed tight when it matters most.

If you're rebuilding the top end of your BMW S55, especially if you're planning on increased boost or track use, this cylinder head stud set is a critical piece of the puzzle. It's designed to be a direct replacement for the factory hardware, but offers a significant improvement in reliability and performance under stress. Ensure you follow the manufacturer's torque specifications during installation for optimal results.