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Image shows two black Cometic metal head gaskets for BMW E46 M3 and Z4 M with S54B32 engine.
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Group 6 Authorized Dealer

Cometic metal cylinder head gasket suitable for BMW E90/E91 M3 S65B40

Product number: 21bmw231.18
Manufacturer: cometic
cometic cylinder head gasket
  • individual compression
  • high pressure stability
  • better thermal conductivity
  • also suitable for boost pressures

€225.33

Delivery time 7 - 10 days

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Made for High-Boost
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Group 6 Authorized Dealer
Description

Cylinder head gasket RACE for BMW 4.0 V8 S65B40 engines in various thicknesses for individual compression ratio.

Note: Your vehicle is fitted with 2 gaskets. If you want to completely replace the gasket, you must buy 2 gaskets!!!

93.00 mm bore
0.69 mm to 3.56 mm thickness

(The BMW S65 stock gasket has a thickness of 0.64 mm)

With our compression calculator you can easily calculate the compression ratio for different cylinder head gasket thicknesses. This way you can quickly and easily find the right thickness for your engine.

To the compression calculator

These head gaskets are used especially in high-performance engines in formula and rally sport. Due to the special composition of different multi-layer metals, not only is far better thermal conductivity achieved, but the pressure stability is also enormously increased!

These head gaskets are used in both naturally aspirated and turbo engines in motorsport.

Various thicknesses of cylinder head gaskets are offered so that the compression ratio can be individually adapted to each S65 engine.

In any case, new head bolts should be used!
Or even better ARP stud bolts.

Do you have questions about the product? Just start the chat, we will help you with your product selection.
Fits for
  • BMW 3er E90 | Year built 2005-2013 4.0 (S65) S65B40 | 420 hp (309 kW)
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Manufacturer
Information about the manufacturer

cometic

Cometic Gasket, Inc.

8090 Auburn Road Concord, OH 44077, United States

[email protected]

EU responsible person

Race Winning Brands Europe B.V.

Pesetaweg 27 2153 PJ Nieuw-Vennep, Netherlands

[email protected]