COMP Cams Camshafts & Valvetrain Parts

The best COMP Cams parts are their performance camshafts, valve springs, and Hi-Tech pushrods — the core valvetrain upgrades that let an engine breathe harder and rev higher. If you are building a street performance or race engine, a COMP Cams camshaft paired with matching valve springs and pushrods is the foundation of the valvetrain, turning more aggressive valve timing into real horsepower.

COMP Cams is one of the most established names in valvetrain components. Their catalog covers camshafts for a huge range of engines, plus the supporting hardware a cam upgrade demands: valve springs with dampers to control valve motion at high RPM, and precision pushrods in various diameters and lengths. When you change a camshaft, the springs, retainers, and pushrods usually need to match — check the manufacturer's specs for your engine before ordering.

Popular picks include the COMP Cams Camshaft (XR258HR-12) and COMP Cams Valve Springs with Damper.

Explore Camshafts and engine performance parts at JDMuscle, and compare valvetrain options from other brands we carry including Brian Crower, Kelford, and Tomei.

Do I need a tune after installing a performance camshaft?

Almost always, yes. A more aggressive cam changes airflow, idle quality, and the fueling the engine needs. Plan on a professional tune to get the power gains safely and keep the engine running smoothly.

Can I install just a camshaft without new valve springs?

Not recommended. Performance cams typically have more lift and a faster ramp rate than stock, which can overpower stock springs and cause valve float. Match the cam with the recommended springs and pushrods.

Are COMP Cams parts universal or engine-specific?

Both. Camshafts and many valvetrain parts are engine-specific (a cam for one engine will not fit another), while items like pushrods come in universal sizes. Check the specs for your exact engine before ordering.

Will a bigger cam hurt daily drivability?

It can. Very aggressive cams lope at idle, lose low-end torque, and may need a higher-stall converter or gears. For a daily driver, stick with a mild street grind. Read our engine product highlight for more on matching parts to your build goals.