Athena 4 layer head gasket (5 cylinder)

ENGINE SHOP

Uprated 4 layer head gasket (5 cylinder) by Athena

Athena HG FORD Focus RS/ST 2.5L TURBO D.83mm-TH.1.60mm

Athena MLS Head gaskets consist of 2-5 layers of steel sheets of different compositions and covered by an elastomer layer that gives excellent sealing properties.

Raised beadings around the combustion chambers and oil / coolant passages increase the local sealing pressure  whilst full-surface or partial elastomer coatings provide additional tightness. Thanks to their composition, Athena gaskets considerably increase the sealing and injection pressure to the lowest engine head bolt tension and guarantee better reliability and performance.

The gasket is 1.2mm thick so is slightly thicker than the OE Volvo / Ford item which does have the added benefit on allowing a minor skim from the face of the Cylinder Head.

Why is the Athena Head Gasket so much better for your Focus ST225 / RS MK2?

1. High precision cut
The latest generation laser equipment makes it
possible to obtain high degrees of cut precision and
purity, totally eliminating production burrs.
Indeed, the latter can cause the infiltration of a
variety of elements (oil, water, compression gas),
compromising engine function.

2. Embossment alignment
This solution increases the gasket’s elasticity in
operation, ensuring excellent sealing capacity over
time, even under extreme conditions.
Conversely, a misalignment in the layers would
cause an immediate flattening of the gasket,
eliminating shape memory function and consequently
creating a loss of compression.

3. GAS STOPPER Technology
This technology allows racing gaskets
to increase their sealing capacity around the cylinder
(especially in high power engines).