cometic gaskits

[Grant Casey]

89mm ones r they smaller then oem gaskits like in hight

[†2005 400ex†]

im not 100% sure but i dont think they are

[lpmaster]

they are available in different thickness unless otherwise noted they're probably stock

[250X_project]

I second what lpmaster said. Just know a thinner head or base gasket changes the deck height raising compression. I don't know how drastically.