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Ultimate head gasket for forced induction M5X/S5X based engines. These feature an organic gasket combined with a metal cooper ring/cut ring around each cylinder for an unbeatable seal. Combine this gasket with one of our ARP head bolt sets for a bulletproof gasket solution. Does not require any additional machining for the cut rings (unlike o-ringing). The latest version of this head gasket includes newer style cut rings that have a triple groove cutting surface for maximum sealing.
This gasket can also be combined with a copper spacer to lower the compression for forced induction on a stock bottom end (Not needed for low compression motors). Add a ARP head stud kit to complete the package!
When you are not running a copper spacer, we recommend running at least 1mm larger gasket than your bore size so the pistons have no chance of contact with the cut rings. If you have a question please shoot us an email and we’d be glad to help.
|Select Bore Size/Thickness||
84.5MM .079″ Thick, 85MM .079″ Thick, 86MM .079″ Thick, 87MM .079″ Thick
|Add copper spacer?||
No, Yes (+$200)
|Add ARP 2000 head stud kit?||
No, Yes (+$185)