The Cosworth FX head gaskets are a great addition and upgrade to the FA20 platform. These are 86.5mm, and have a 0.78 thickness. There are Left and Right side specific gaskets on the FA20 motors. If you were to put a new head gasket in your vehicle, you can trust Cosworth. Cosworth has earned themselves quite the establishment in motorsports due to their rich racing history. Their head gaskets have been designed to handle the most demanding of conditions. These have been manufactured from pre-coated die cut stainless steel resulting in uniform coating distribution and consistent shape.
Other feature a 0.25 micron layer of nitrile rubber that provides equal distribution and coverage with no high, or low areas. The die cut manufacturing process ensures smooth edges, and feature a “folded stopper” layer for additional clamping force around each cylinder.
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