HKS Metal Head Gasket t=1.0mm b=87.5mm

HKS Metal Head Gasket t=1.0mm b=87.5mm

HKS Metal Head Gaskets (23001-AM006) Metal Head Gasket, Opposed Bead Stopper Type Bore : 87.5mm, Comp Ratio: 9.1:1, Thickness: 1mmThe Performance requirement from Head Gasket.

As the cylinder block and head are not rigid body, when the Head Bolts are tightened, the gap between the surfaces and the surface pressure applied is not even across the whole surface. Moreover, due to combustion pressure and vibration while driving, the conditions are continually changing and the contact surface is being continually beaten. As a result, a good gasket must ensure that contact surface pressure is spread as evenly as possible and also adapt quickly to the ever changing gaps that can appear in the contact surface to maintain a good seal with good pressure.


A high pressure seal is formed around the combustion chamber through the use of stoppers which create a step within the gasket for optimum sealing. By making the stopper part of the plate also allows the fold to be smaller while maintaining structural integrity. One side of the plate is completely flat meaning that it can be layered with the stopper to allow stoppers to be used in even the tightest of locations around the combustion chamber forming a high quality seal. Compared with other gaskets of the same thickness, there are more layers in these gaskets giving flexibility which allows the gasket to maintain a good seal even when the engine tries to vibrate and move.

HKS put all their know-how knowledge into engine parts from the data they have acquired from the drag race, round race, time attack and drift race. The HKS team provide Engine tuning ranging from Camshafts, Pulleys, Pistons and Rods to Timing Belts, Pump Upgrades and even Head Gaskets. The concept behind HKS engine products was to produce something the customers would truly be happy with.

This product is compatible with the following vehicles

Vehicle Make Vehicle Model Vehicle Variant From To Engine Notes
Mitsubishi Lancer Evolution X 2008 2013 4B11T 2.0L FQ 330 - 4WD Petrol
Mitsubishi Lancer Evolution X 2008 2013 4B11T 2.0L FQ 360 - 4WD Petrol
Mitsubishi Lancer Evolution X 2009 2010 4B11T 2.0L FQ 400 - 4WD Petrol

Whether it is engine, exhaust, suspension, or drive-train systems, there is no substitute for the performance, quality and reliability of HKS. Part-Box/Co-ordSport are an approved distributor for HKS performance and tuning products.

For over 35 years, HKS products have been put to the test in drag racing, road racing, rallying, and top speed trials. HKS equipped vehicles have captured numerous racing championships and hold claim to a myriad of competition records using many “off the shelf”, race proven HKS components. As a result, HKS has been synonymous with “performance” in the automotive aftermarket industry for the past 35+ years.

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  • Product Code: 23001-AM006
  • Availability: In Stock
  • RRP: £180.00 (incl. Tax)
  • Ex Tax: £150.00

Tags: HKS-Metal-Head-Gasket-t=1.0mm-b=87.5mm