Engine Camshaft Hardware Kit

What Is an Engine Camshaft Hardware Kit?

The camshaft is one of the most critical components in any internal combustion engine. It controls the precise timing of intake and exhaust valve operation, directly influencing how your engine breathes, produces power, and idles. As the camshaft spins, its lobes push against lifters and valves in a carefully choreographed sequence that determines everything from low-end torque to high-RPM horsepower.

But even the finest camshaft is only as good as the hardware holding it in place. Engine camshaft hardware kits provide the dedicated fasteners, retaining plates, bolts, and related components needed to properly secure the camshaft during installation and throughout its service life. Camshaft hardware kits are purpose-engineered to ensure the cam stays precisely positioned under the tremendous rotational forces and thermal cycling of daily driving or all-out competition.

Why Camshaft Hardware Matters

When replacing or upgrading a camshaft, it is tempting to reuse existing hardware — but this is a risk not worth taking. Camshaft bolt and lock plate kits prevent the camshaft bolts from loosening, which can otherwise lead to costly valvetrain and engine damage. The lobes of the camshaft are timed to the crankshaft with great precision, and any movement of the cam due to loose or fatigued fasteners can throw off valve timing, reduce power, and in severe cases, cause catastrophic engine failure.

A complete hardware kit typically includes mounting bolts, lock plates or tab washers, and other retention hardware specific to your engine family. Because these components are designed and tested to work together, using a matched kit reduces the risk of fitment issues and ensures the installation meets proper torque specifications from the start.

What to Consider When Shopping Camshaft Hardware Kits

• Engine compatibility: Hardware kits are application-specific. Always verify fitment to your exact engine family — LS, Gen III HEMI, small-block Chevy, and others all use different bolt patterns and retention designs.
• Material quality: Look for kits made from high-grade steel that can withstand repeated heat cycles without stretching or losing clamping force.
• Complete vs. partial kits: Some kits include only the primary cam bolts, while others bundle in lock plates, dowel pins, and additional retention hardware. Assess what your build requires before purchasing.
• Performance vs. OEM replacement: If you are swapping in a performance camshaft, consider hardware kits rated for higher-stress applications to match the demands of the upgraded cam.

Top Brands in Engine Camshaft Hardware Kits

COMP Cams is the dominant name in this category — and for good reason. COMP Cams is described as the world's top manufacturer of performance camshafts, lifters, valve springs, rocker arms and related valvetrain parts for street and race engines, and their hardware kits are engineered as part of that complete ecosystem. Their cam install kits are offered for a wide range of popular platforms, including GM LS, LT1, LT4, and Gen III HEMI engines, providing builders with the matched hardware needed for a clean, reliable installation alongside any COMP cam upgrade.