Evo 10 - Cometic - 4B11 90mm Head Gasket 0.44"

Cometic 4B11 MLS Head Gasket, 90mm Bore, 0.44". Evo X

The 90mm listing is the large-bore option in Cometic's 4B11 range, which puts it firmly in built-engine territory rather than on the shelf as a service part. A gasket bore that generously clears the cylinders keeps the sealing bead sitting on metal rather than hanging over the edge of a cylinder, which is what you want once a block has been opened out. Pair it with a thickness that suits the compression the build is aiming for.

• Layered steel construction, MLS
• Bore: 90mm, the large-bore option for this engine
• Listed thickness: 0.44"

Fits:

• Mitsubishi Lancer Evolution X (CZ4A, 2008–2015)

Cometic part #C4484-044. Available to order; shipping shown at checkout.