Revolution 86 / BRZ N1 Metal Head Gasket

Car Make: Toyota
Model: 86 / BRZ
Product code: RZN6-N1MG0.58 / 0.73

IT is a metal head gasket for the new FA20.
The mass-produced head gasket has a cylinder bore of 89.4 mm compared to 86.0 mm, which is considerably larger than the bore.
Therefore, in the high compression NA engine, the compression is low and the size is not appropriate for the combustion chamber.
This N1 metal head gasket is designed to have the same size as the combustion chamber shape.
Also, with the feeder, I would like to worry about the gasket coming off, but it is 3.4 mm larger than the bore, and the combustion pressure is always accumulated on the gasket working surface and is applied.
Two types of gasket thickness are available: 0.58 mm, which is the same as the genuine gasket, and 0.73 mm, which is used for surface grinding repair for feeders.