11MM Cylinder Head Stud Kit

Boost without fear. This is the backbone your EJ build needs.

The Fuji Racing 11mm Head Stud Kit is engineered for EJ builders chasing power, reliability, and peace of mind. Whether you're running higher boost or just tightening up a stock engine, this stud kit delivers the clamping force to keep your head down—literally.

🧱 No machine work required – Direct fit for EJ20, EJ22, and EJ25 blocks
🔩 100% compatible with OEM and Fuji Racing gaskets
💪 High-tensile studs with precision threads – Built to handle serious stress
⚙️ Improves head-to-block integrity under boost
🔧 No cylinder head modification needed

When cylinder heads lift under load, it’s game over. This kit prevents that. Designed to hold power without compromise, it’s the go-to for street builds, track cars, and anything running above factory spec.

Includes:
• Full set of 11mm high-strength head studs, nuts, and washers
• Detailed installation instructions

Fits:
• Subaru EJ20 / EJ22 / EJ25 engines (no machining required)

Ready to send it? Lock it down with Fuji Racing.