Downloads

Download Installation Manuals for Engine Upgrades | HCR

Looking to upgrade your engine? Explore our library of free instruction manuals to guide you through the process. Learn step-by-step how to install HCR head studs for maximum engine performance and durability. Find guides on drilling and tapping engine block holes for larger studs, tailored for precision and safety. Whether you’re a professional builder or an enthusiast, our resources ensure your engine upgrades are done right.

Head Stud Install

  • Subaru EJ 11mm

    INSTALLATION METHOD FOR SUB11 HEAD STUD KITS

    Download 

  • Subaru EJ 14mm

    INSTALLATION METHOD FOR SUB14 HEAD STUD KITS

    Download 

  • BMW N54

    INSTALLATION METHOD FOR N54 HEAD STUD KITS

    Download 

  • BMW N54 LONG

    INSTALLATION METHOD FOR N54 LONG HEAD STUD KITS

    Download 

  • BMW N55/S55

    INSTALLATION METHOD FOR N55/S55 HEAD STUD KITS

    Download 

Drilling and tapping drawings

  • BMW N54

    M9 to M11 conversion for BMW N54 block

    Download 

  • BMW N55

    M9 to M11 conversion for BMW N55 block

    Download 

  • BMW N55 Long Studs

    N54_M9-M11_long_studs_drill_tap

    Download 

Contact Us

Get in touch to learn more about our engine upgrades and how we can help you achieve the best performance for your vehicle.

[email protected]

Contact form