Athena Racing Copper Ring Head Gasket for BMW M50B25 / M52B25 / M52B28 / Z3 87 mm 2.00 mm 330014R

ATHENA Racing Cylinder Head Gasket

Material
ATHENA MLS gaskets feature a combination of 3 to 5 layers made from different types of raw materials.

The combination of outer and inner layers is designed to offer superior performance to standard compression, and the type of steel used may vary depending on engine requirements.
Athena MLS gaskets provide uniform torque load across the entire sealing surface to compensate for any cylinder deformation.

The Athena MLS gasket is the best solution for both aluminum cylinder heads with cast iron blocks and aluminum cylinder heads with aluminum blocks.

Manufacturing Process
Athena New Design MLS cylinder head gaskets are made of high-quality, high-strength 301 stainless steel.
Each layer is individually formed using a state-of-the-art laser cutting process and embossed with an optimized forming process.
Two layers of the cylinder head gasket undergo a stress-relief process to significantly reduce the stress induced by embossing.
After the stress-relief process, a proprietary two-component polymer coating is applied, ensuring uniform coverage of the outer layers, with no interruptions in the coating. This process ensures micro-sealing of engine coolant and oil fluids.

Athena MLS gaskets are tested and analyzed on engine test benches and in endurance tests.

Gas Stopper Technology

Gas Stopper technology is a key factor in the design of competition MLS cylinder head gaskets. The stainless steel stopper layer incorporates an innovative active folding system that provides a high-pressure seal around the cylinder bore when tightening the cylinder head. The gas stopper is located around the combustion chamber, allowing for a firmer fit between the cylinder head and the engine block, preventing gas leaks.

This also prevents component deformation due to faster equalization of their temperature. Benefits

Superior sealing properties under high pressure conditions

Increased elasticity and resistance to constant load

Optimized load balance

Improved engine performance

Increased durability

Patented coating technology

Our two-component polymer coating is applied after the stress-relief process and ensures uniform coverage of the outer layers, with no interruptions in the coating. This process ensures micro-sealing of coolant/engine oil fluids and meets the demands of various harsh environments.

The first layer is a high-temperature compound that adapts to the surface irregularities of the engine block and cylinder head. (Typical MLS cylinder head gaskets require a 30 Ra surface finish, while Athena's seal surface finishes up to 60 Ra).

The second layer peels off easily and does not adhere to the contact surfaces when disassembling the engine.
Compatible with:
BMW 3 Series Cabriolet (E36) 325 i 2494 cc 1993/1995 BMW 3 Series Cabriolet (E36) 328 i 2793 cc 1995/1999 BMW 3 Series Compact (E36) 323 ti 2494 cc 1997/2000 BMW 3 Series (E36) 323 i 2494 cc 1995/1998 BMW 3 Series (E36) 325 i 2494 cc 1990/1995 BMW 3 Series (E36) 328 i 2793 cc 1995/1998 BMW 3 Series Touring (E36) 323 i 2494 cc 1995/1999 BMW 3 Series Touring (E36) 328 i 2793 cc 1995/1999BMW 5 (E39) 528 i 2793 cc 1995/2000BMW 5 Touring (E39) 528 i 2793 cc 1996/2000BMW M50 B25 (256S1) 2494 ccBMW M50 B25 (256S2) 2494 ccBMW M52 B25 (256S3) 2494 ccBMW M52 B28 (286S1) 2793 ccBMW M52 B28 (286S2) 2793 ccBMW Z3 Roadster (E36) 1.8 i 1796 cc 1995/1998BMW Z3 Roadster (E36) 1.9 i 1895 cc 1995/1999BMW Z3 Roadster (E36) 2.8 i 2793 cc 1996/2000