Camshafts, Cam Gears & Components

Shop performance camshafts, adjustable cam gears, cam seals, cam covers, and related valvetrain components for import and domestic engine builds. This collection brings together application-specific parts for Honda and Acura B-Series, D-Series and K-Series engines, Subaru EJ platforms, Mitsubishi 4G63, Toyota 1JZ, 2JZ and 3S-GTE, Nissan SR20, RB26 and VR38, Hyundai G4KF, Ford Coyote and Predator engines, and additional performance applications.

Choose from street, forced-induction, high-RPM, and competition-oriented components by GSC Power-Division, Brian Crower, Skunk2 Racing, HKS, GReddy, BLOX Racing, Ford Performance, COMP Cams, Manley, Supertech, and other respected manufacturers. Product requirements vary, so the correct choice depends on engine code, cylinder-head configuration, cam position, timing system, intended RPM range, and supporting modifications.

Performance Camshafts for Street and Race Engines

A camshaft controls when each valve opens, how far it lifts, and how long it remains open. A performance cam can change the engine's powerband, airflow, idle quality, vacuum, and high-RPM capability. This collection includes mild street profiles, naturally aspirated and turbo-specific grinds, staged cam sets, individual intake or exhaust cams, billet designs, and aggressive race profiles.

Stage names are specific to each manufacturer. A Stage 2 profile from one brand is not automatically comparable to a Stage 2 profile from another. Evaluate the published lift, duration, overlap, lobe positioning, RPM range, spring requirements, cylinder-head needs, and piston clearance before selecting a camshaft.

Adjustable Cam Gears and Cam Sprockets

Adjustable cam gears allow an experienced engine builder or tuner to advance or retard cam timing within the manufacturer's adjustment range. They are used to verify or refine installed cam timing after machining, head-gasket changes, camshaft upgrades, or other modifications that can alter the relationship between the crankshaft and camshaft.

Cam gears are not universal. Confirm engine code, intake or exhaust position, tooth count, timing belt or chain design, variable-valve-timing compatibility, and timing reference marks. Browse our focused cam gears collection for adjustable gears and sprockets by application.

Cam Seals, Cam Covers, and Supporting Components

Camshaft service may also require new seals, cover gaskets, hardware, followers, lifters, lash components, or timing parts. Cam seals help control oil leakage where the camshaft passes through the cylinder head or timing area. Cam covers protect the valvetrain and can serve as replacement, service, or engine-bay appearance components depending on the application.

Inspect related components while the valvetrain is accessible. Worn guides, tensioners, chains, belts, followers, phasers, seals, and fasteners can affect timing accuracy and reliability. Replace only with components that match the exact engine and cylinder-head configuration.

Engine Code and Variable-Valve-Timing Compatibility

Camshaft and timing-component fitment can change within the same vehicle model. Confirm the exact engine code, model year, cylinder-head casting, regional specification, and variable-valve-timing system. Subaru EJ205, EJ255 and EJ257 applications differ by AVCS configuration. Nissan SR and RB components can differ by chassis, NVCS equipment, and cam position. Honda K20 variants and Ford Coyote generations also require application-specific selection.

Pay close attention to VVT, VTEC, MIVEC, AVCS, NVCS, and cam-phaser compatibility. Never assume that similar displacement or a shared engine family guarantees interchangeability.

Valve Springs, Retainers, and Clearance Requirements

Many high-lift or long-duration camshafts require matched valve springs, retainers, followers, lifters, lash caps, or upgraded valves. Verify installed height, spring pressure, coil-bind clearance, retainer-to-seal clearance, piston-to-valve clearance, and valve lash where applicable. Aggressive profiles may also require ported cylinder heads, additional piston clearance, or other engine modifications.

Complete the valvetrain with compatible valve springs and retainers, cylinder-head components, and timing components. Always follow the camshaft manufacturer's current specifications for the selected profile.

Cam Degreeing and Engine Calibration

Degreeing confirms the camshaft's actual installed position relative to the crankshaft. It is especially important after cylinder-head resurfacing, block decking, head-gasket thickness changes, adjustable-gear installation, or performance camshaft replacement. Correct installation should be verified with appropriate measuring tools rather than assumed from timing marks alone.

Camshaft changes can affect idle airflow, fuel requirements, ignition timing, boost control, and variable-cam operation. Professional calibration is recommended after changes that alter lift, duration, overlap, or installed centerline.

How to Choose the Correct Camshaft and Components

• Confirm the exact year, make, model, engine code, and cylinder-head version.
• Choose a camshaft profile for the intended RPM range and vehicle use.
• Compare actual lift, duration, overlap, and manufacturer requirements.
• Verify whether the listing includes one cam, a matched pair, or a complete set.
• Confirm intake or exhaust position and variable-valve-timing compatibility.
• Match valve springs, retainers, followers, lifters, and lash components.
• Check cam-gear tooth count and timing belt or chain compatibility.
• Measure piston-to-valve, coil-bind, and retainer-to-seal clearances.
• Plan for cam degreeing and appropriate engine calibration.
• Review the product listing and manufacturer instructions before ordering.

Frequently Asked Questions

Do performance camshafts require upgraded valve springs?

Many do. The required spring pressure, installed height, retainer, and clearance specifications depend on the cam profile and engine. Follow the manufacturer's requirements.

Do Stage 1, Stage 2, and Stage 3 mean the same thing across brands?

No. Stage labels are brand-specific. Compare the actual camshaft specifications, intended RPM range, and supporting-part requirements.

What is the difference between a camshaft and a cam gear?

The camshaft operates the valves. The cam gear or sprocket connects the camshaft to the engine's timing system. An adjustable gear can change the installed cam timing within its designed range.

Can one adjustable cam gear fit multiple engines?

Only when the manufacturer specifically lists those applications. Tooth count, mounting pattern, timing marks, cam position, and VVT design must match.

Should cam seals be replaced during camshaft service?

Replacement is often practical while the camshaft and timing components are accessible. Inspect the seals and follow the engine manufacturer's service procedure.

Do performance camshafts need to be degreed?

Degreeing is recommended for performance builds because it verifies actual valve timing and can identify installation or machining-related timing changes.

Will a larger camshaft always produce more power?

No. Results depend on the complete engine combination, airflow, compression, exhaust, forced induction, fuel, cam timing, and calibration. An oversized cam can reduce performance outside its intended RPM range.

Shop Camshafts and Components at Black Ops Auto Works

Browse the complete Camshafts and Components collection or shop the focused performance camshafts collection. Confirm engine code, cam position, quantity, timing-system compatibility, valvetrain requirements, clearances, and tuning needs on the individual product page before ordering.