HKS stopper type metal headgaskets for GT86 & BRZ

Opposed bead stopper type metal gasket for the FA20 engine provides higher bore sealing durability than a stock gasket.

Features:

• Stopper structure of the bore seal is separated type so it prevents leakage even under high gas-pressure at high engine output.
• Special coating was applied on the head side and cylinder side to improve sealing performance when tightening the bolts.
• Combining with strengthened ARP head bolts for even higher seal strength.

Available in various thicknesses to suit a wide range of applications.

Check 2nd picture for the various calculated compression ratios.