Is the Athena top end kit a different size from the oe
By Bailey D.
Unless otherwise specified after you select your exact machine from our fit guide, these gaskets are for the OEM bore size. You'll see that in the size over standard spec below the main description after choosing your machine. What makes the Race Gasket kit neat is that it comes with head gaskets of different thicknesses so you can easily bump compression a bit and get more power out of your otherwise stock (or sometimes big bore) engine.