Athena Reinforced Head Gasket for Chevrolet V8 5.7L (350ci, 55-91)

Important notice : Athena head gaskets for Chevrolet 350ci V8 engines come with 6 additional holes, compared to OEM gaskets. Called "Steam Holes" (see photo), they allow better flowing and bleeding of the coolant fluid. Indeed, under heavy duty use, these Chevrolet engines often suffer from small air cavities in the block and cylinder head, causing overheating points and premature wear. We highly recommend these gaskets if your engine is intended to be used for racing or sporty driving. If however you prefer strictly compliant to OEM specifications, please choose "Without Steam Holes" versions.

Athena Uprated Head Gaskets Specifications

Athena, European leader in producing gaskets and various sealing solutions for industrial applications, is also very well known for its high performance products designed for racing cars engines. Capable of withstanding high stress and very high temperatures, they guarantee your engine optimum reliability whatever the conditions of use.

MLS or Cooper ?

Head gaskets from the MLS range (Multi Layer Steel) provide a superior sealing to OEM, and offer a wide choice of thicknesses and diameters, suitable for all needs. They are made of several layers of first quality, shape-memory stainless steel (2 to 5 layers depending on the application), to guarantee the best durability against high compression ratios and boost. They benefit from reinforcements around coolant and oil holes. A specific coating is applied to the external layers for a uniform seal, even in the presence of small surface imperfections. To finish with, Gas Stopper technology helps to reduce long term deformation of the material.

Cooper Ring head gaskets are particularly suitable for heavily supercharged and turbocharged applications (more than 2 bars of boost, N2O use, extreme N/A compression ratios...). They are made from a high performance asbestos-free composite, non-organic materials, aramid fibers and elastomer. They benefit from silicone reinforcements in critical areas and special coating for uniform sealing. Theses gaskets come with stainless steel separated rings ("Cooper Rings"), ensuring better tightness between the block and the cylinder head. These products are ready-to-use and do not require block or head grinding.

Please note : the above application list is non-exhaustive, you can double check compatibility and all applications using manufacturer database before ordering your head gasket.