ENGINE HARDWARE

Whether you are performing a standard long-block assembly or building a high-displacement racing motor, the right hardware is non-negotiable. We carry everything from standard grade-8 case bolts to high-tensile chromoly head studs. Our hardware is selected for its ability to maintain consistent torque values even through the extreme thermal expansion and contraction cycles unique to air-cooled engines.

Our Engine Hardware Selection Features:

• Head Stud Kits: Available in standard and heavy-duty chromoly for 8mm and 10mm applications, providing the clamping force needed to prevent head lift.

• Engine Case Bolt Kits: Complete sets to seal your case halves properly, including the specialized washers and nuts required for a leak-free build.

• Rocker Arm & Cylinder Studs: High-strength replacements to ensure your valvetrain remains stable and aligned at high RPMs.

• Oil Pump & Screen Hardware: Precision fasteners to secure your lubrication system, preventing air leaks and ensuring consistent oil pressure.

• Specialized Fasteners: From tinware screws to flywheel gland nuts, we stock the small but vital pieces that often get lost or damaged during a teardown.

Build with the confidence that comes from using new, high-quality fasteners. Protect your investment and your hard work by choosing the best hardware in the industry. Shop the collection at Appletree Auto today and take advantage of Free Shipping on all orders over $75!