RCM MLS Single Head Gasket - 1.5mm (04-06 EJ25)

TECHNICAL SPECIFICATIONS:

  • Fitment: EJ25
  • 14mm Diameter Head Stud / Bolt Holes (Also suitable for use with Standard Head Bolts and 11mm Stud Kits)
  • Die Cut
  • Folded Stopper Layers
  • Multi Layer Steel Gasket (MLS)
  • Nitrile Rubber Coated


KEY FEATURES:

  • Improved sealing capacity over conventional gaskets thanks to its Nitrile Rubber Coating.
  • Increased protection around combustion chambers by means of its Folded Stopper Layers.
  • Die Cut precision manufactured for the highest quality finish and fitment.
  • Ready for immediate use our larger 12mm & 14mm head stud kits
  • Complete range of sizes available for all EJ20, EJ22, EJ25, EJ25+ series engines.


# CONFIRMED APPLICATIONS:
Please Note, these are individual head gaskets, you will need to add 2 x gaskets to your cart if you require a pair.
For use with EJ25 engine only up to 2006 model year. EJ25 engines manufactured from 2006 onward have a different style of waterway cut out on the gasket.  Those gaskets are available separately. Please either compare images carefully to ensure you select the correct gasket or alternatively please contact us with your VIN number and we can confirm fitment for you.
Please note; compression ratio can vary depending on choice of engine components and cylinder head gasket thickness.

Weight
2.00 lbs
SKU
RCM1691
Weight
2.00 lbs
Our Price: $87.52

The Roger Clark Motorsports High Performance Head Gaskets are Engineered to perform under the most extreme of conditions and are rated for use up to and over 600BHP. Unlike most conventional cylinder head gaskets, RCM gaskets use what is most commonly known as a folded stopper level. This revolutionary design dramatically reduces the chances of any pressure leakage from the cylinders. An increased thickness in the gasket is introduced around vital sealing areas and the design of this extra layer forms a much stronger barrier to prevent gasses/pressure/water and oil escaping from its designated area. The layer acts as a very reliable defense and is highly recommended for any Subaru, specifically those running above the standard factory torque/horsepower figures. In conjunction with this new technology RCM gaskets also feature a unique nitrile rubber coating. This coating is designed to act as a cushion in which to fill/take up any areas of imperfection found in either the cylinder head or block faces, to ensure you have the very best combustion chamber armor!
Finally RCM cylinder head gaskets are all stamped from dies as appose to laser cut. With die stamping you can process a large amount of material at once which means that variations in the quality of each individual gasket is far less compared to laser cutting (in which each gasket section is cut separately to one another). With Die Cutting the finished edges are also far superior, leaving a much smoother, neater edge to the gasket as appose to laser cut steel which leaves a sharper edge behind. For the ultimate seal all RCM gaskets are manufactured and designed to accept the larger 12mm and 14mm cylinder head studs also available from Roger Clark Motorsports. The standard cylinder head bolt (the component that joins the cylinder head to the block and offers force to seal your cylinder head gasket in place) is 11mm thick and uses a relatively fine thread. It is important to remember this bolt was developed for use on a mainstream engine producing no more than 320Bhp, Subaru did not manufacture this bolt for use with anything above this power and as such it is important to consider stronger and more suitable replacements. That is why Roger Clark Motorsports manufacture both a 12mm and 14mm replacement head stud kits. The studs are naturally stronger due to their extra thickness and superior material quality but they also benefit from a much coarser rolled thread (meaning you can tighten them far more than the standard bolt which in turn will offer a much higher clamping load between both the cylinder head and block faces where you head gasket is situated.)Reliability is key to any engine rebuild, whether done for higher horsepower applications or just a simple repair/refresh it is important to choose your components wisely so that you dont end up repeating the process later down the line.


TECHNICAL SPECIFICATIONS:

  • Fitment: EJ25
  • 14mm Diameter Head Stud/Bolt Holes (Also suitable for use with Standard Head Bolts and 11mm Stud Kits)
  • Die Cut
  • Folded Stopper Layers
  • Multi Layer Steel Gasket (MLS)
  • Nitrile Rubber Coated


KEY FEATURES:

  • Improved sealing capacity over conventional gaskets thanks to its Nitrile Rubber Coating
  • Increased protection around combustion chambers by means of its Folded Stopper Layers
  • Die Cut precision manufactured for the highest quality finish and fitment
  • Ready for immediate use our larger 12mm & 14mm head stud kits
  • Complete range of sizes available for all EJ20, EJ22, EJ25, EJ25+ series engines


CONFIRMED APPLICATIONS:

  • NOTE: these are individual head gaskets, you will need to add 2 x gaskets to your cart if you require a pair
  • For use with EJ25 engine only up to 2006 model year. EJ25 engines manufactured from 2006 onward have a different style of waterway cut out on the gasket. Those gaskets are available separately.
  • Please either compare images carefully to ensure you select the correct gasket or alternatively please contact us with your VIN number and we can confirm fitment for you.
  • NOTE: compression ratio can vary depending on choice of engine components and cylinder head gasket thickness.

warning_symbolWARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to https://www.P65Warnings.ca.gov/passenger-vehicle.

Weight
2.00 lbs
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