Supertech Subaru EJ20 93.5mm Bore 0.047in (1.2mm) Thick Cooper Ring Head Gasket - HG-SUEJ20-93.5-1.2T

Engineered to Seal. Built to Win.

Supertech head gaskets deliver superior sealing for boosted, high-compression, and competition engines. Each gasket is laser-cut from premium stainless steel for exact fitment and stress-relieved to endure extreme temperature and pressure cycles. Our MLS design features gas-stopper embossments and a uniform polymer coating to maintain a leak-free seal—even on less-than-perfect surfaces.

Precision Meets Performance

• Laser-Cut Stainless Construction for dimensional accuracy and consistent sealing.
• Stress-Relieved Embossments to prevent cracking under high boost.
• Advanced Polymer Coatings to micro-seal surface imperfections and resist heat cycling.
• Application-Specific Fitment for OEM and race-built engines.
• Race-Proven Reliability tested in extreme motorsport and dyno environments.

Fire Ring Options for Extreme Builds

Select applications feature Fire Ring gaskets—steel-core composites with separate stainless cut-rings for unmatched cylinder pressure sealing in ultra-high horsepower setups. A silicone-based sealing bead is applied around critical oil and coolant passages for maximum reliability.

Compatible Applications

Direct-fit coverage for top platforms, including Honda B-Series , Toyota 2JZ , Subaru EJ20 , BMW S54 / S52 , Nissan SR20 , and VW/Audi EA888 .

Complete Your Build

Pair your head gasket with Supertech Pistons , Connecting Rods , and Valves for a complete bottom-end and valvetrain solution.