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MERCURY Camshafts & Valvetrain

Part Groups

Results 1 - 24 of 50

Summit Racing™ True Roller Timing Sets

Summit Racing offers True Roller timing sets for a wide range of vehicles from the 1950s and up. These single- or double-roller sets have rugged true-roller chains, teamed with steel crank and cam sprockets. The crank sprockets feature multiple keyways, which allow you to set the cam timing to your choice of degrees in advanced, retarded, or normal. Order the timing set recommended for your year, make, and engine application.

4.67 out of 5 stars ( 171 )

$41.99

$43.99

Howards Cams Double Roller Timing Sets

Howards Cams double roller timing sets are hand-matched for quality and reliability. These 3-piece timing sets feature a premium double roller chain for extended life with cast iron cam sprockets. The 3-keyway crank sprockets offer a +4, 0, -4 cam adjustment.

4.9 out of 5 stars ( 10 )

$44.99

$52.99

Trick Flow® Roller Followers

Are you putting new cams in your engine? These Trick Flow® roller followers will help you get the job done right and get the most out of your cams. Featuring hardened steel construction, Trick Flow® roller followers are the perfect OE-style replacements for 4.6/5.4L 2V or 4V modular engines.

4.67 out of 5 stars ( 3 )

$31.99

Sealed Power Hydraulic Roller Lifters

Your valves will open more quickly from a fully closed to a fully opened position with a roller setup, compared with conventional flat lifters. With Sealed Power Hydraulic roller lifters you will notice higher performance, quieter engine operation, and more horsepower. They also provide proper vacuum and idling capabilities.

4.27 out of 5 stars ( 26 )

$23.99

Cloyes Heavy-Duty Timing Sets

Cloyes heavy-duty timing sets supply everything you need from a timing chain—performance and reliability. The cam sprockets are machined from cast iron with billet steel crank sprockets. Cloyes heavy-duty timing sets are available in single or double roller versions and offer .200 in. (for small blocks) or .222 in. (for big blocks) diameter double roller chains. Cloyes heavy-duty timing sets are considered the industry's most reliable workhorses. They're engine- or model-specific; order the set designed for your application.

4.46 out of 5 stars ( 293 )

$23.99

$55.99

Melling Timing Chain Sets

Melling timing chain sets are designed for use with either performance or stock cams. They have a solid-bushing chain for a true bearing surface that rolls with the sprockets, eliminating chain stretch. The crank gears are machined from stress-proof steel. Most Melling timing chain sets have three keyways to ensure accurate timing for early or late model vehicles, and to allow you to set the cam timing at 4 degrees advanced, 4 degrees retarded, or stock. However, 50-state (stock replacement) sets have single keyways. The chains are available in several styles, such as single or double roller, single non-roller, and link belt. Melling timing chain sets are not for use above 6,500 rpm. Order the model designed for your vehicle application.

4.22 out of 5 stars ( 133 )

$32.99

$49.99

Melling Timing Belt Tensioners

Melling manufactures the highest quality timing belt tensioners for reliability and performance. All Melling timing belt tensioners are designed to meet or exceed OEM specifications and stand up to the harshest automotive conditions.

5.0 out of 5 stars ( 6 )

$51.99

Melling Rocker Arms

Melling rocker arms, available for both domestic and import applications, meet or exceed OEM specifications. Depending on the OE design specifications, Melling rocker arms are provided in either stamped or cast materials. Built from only the best materials and manufacturing processes available, they are perfect replacements priced right for your budget. Melling recommends installing new rocker arms with every engine rebuild to assure long engine life and efficient performance. Answer the little knock under your hood with replacement rocker arms from Melling--a supplier of quality engine parts.

4.58 out of 5 stars ( 72 )

$22.99

PRW Rocker Arm Shims

PRW rocker arm shims are available for your Chevy, Ford, and Mopar setups. Each kit includes several shims in three different thicknesses to gain the ideal fit for your rockers. Choose the set created for your vehicle.

5.0 out of 5 stars ( 4 )

$43.87

Cloyes Engine Timing Sets

Cloyes engine timing sets meet OE performance requirements. They utilize the latest in design and materials so you can enjoy quiet, maintenance-free performance. These sets are available in various timing chain styles, such as link belt, single roller, and single non-roller. The gears are made from high alloy steel, and heat treated for durability; while the chain is pre-stressed, and heat treated for longevity. Order the timing set designed for your specific model application.

4.14 out of 5 stars ( 7 )

$33.99

COMP Cams Ultra Pro Magnum Rocker Arms

Utilizing years of valvetrain design experience, the latest FEA stress analysis technology, and an exhaustive testing regiment (dyno and Spintron), COMP Cams engineering team left no detail to chance. Everything from casting techniques to valve spring clearance was scrutinized to ensure that Ultra Pro Magnum rocker arms not only lived up to the lofty standards of their predecessor, but also took stud mount rocker performance, stability, and value to a whole new level. The most noticeable advancement centers around their nearly unbreakable investment cast 8650 chromoly body. The arched, web-like design delivers a nearly 29 percent increase in strength and rigidity, while reducing the moment of inertia and optimizing the dynamic balance. The resulting rockers maximize lift and valvetrain control at high rpm. The increased retainer and valve spring clearances of the new design enable the use of large-diameter valve springs, retainers, and locks, without clearance or fitment issues. The new black oxide exterior finish offers a distinctive appearance, along with long-term corrosion resistance. The COMP Cams Ultra Pro Magnum rocker arms feature an oversized trunnion and precision-sorted needle bearings designed for use with high-load valve springs. These unique rockers also feature hardened roller tips for reduced friction and elimination of the valve stem "side loading" that causes premature valve guide wear.

4.76 out of 5 stars ( 200 )

$45.95

$46.95

COMP Cams High Energy Hydraulic Roller Lifters

Keep your valvetrain running smooth. COMP Cams High Energy hydraulic roller lifters are for use with the newly designed hydraulic roller cam series, or as performance replacements for stock hydraulic roller lifters. You must be certain that the lifters are correct for the type of block used.

3.82 out of 5 stars ( 73 )

$35.95

NTK Engine Variable Valve Timing (VVT) Solenoids

NTK engine variable valve timing solenoids are manufactured to meet the demands of today's VVT engines at both low and high rpms. The solenoids are individually tested to ensure consistent quality, with end of production tested in oil to ensure the valve is primed to work properly upon installation. Order the model recommended to fit your vehicle. Additional VVT solenoid features: * Manufactured to precise OE valve body dimensions and utilizes fluorocarbon O-rings to help prevent oil leakage * High-strength thermoplastic for resistant to temperature, moisture and chemicals * Precision-wound, copper-coated windings help increase solenoid longevity * Hard-coated anodized spool valve prevents corrosion for lasting service

Not Yet Reviewed

$64.99

Cloyes Replacement Timing Chains

Restore prime performance to your engine with the ultra-durable construction of Cloyes OE replacement timing chains. They're precisely engineered with high-quality materials for optimum chain-to-tooth fitment and timing. Cloyes has been manufacturing and marketing timing components for nearly a century and is a leading aftermarket manufacturer of timing drive components. Features include: * Made from high-quality materials for durability * Precisely engineered for optimum chain-to-tooth fitment and timing * Direct-fit for straightforward installation * Available for wide range of vehicle-specific applications

4.35 out of 5 stars ( 20 )

$20.99

$40.99

Mahle Original Engine Valves

Mahle Original engine valves are precisely engineered to strict tolerances based on your application. Each valve will provide your engine with optimal flow throughout the cylinder head for maximum performance. Mahle offers a wide variety of engine valves and are hands down the best selection for your engine! Order the valve application specific to your engine application.

Not Yet Reviewed

$24.99

Dorman Variable Valve Timing Solenoids

Dorman variable valve timing solenoids will restore the fuel efficiency and normal operation of your vehicle. These direct replacement solenoids are engineered from quality materials for a proper fit and years of effective performance. They easily plug into the electrical harness and come conveniently packaged with the installation gasket (where applicable). Maintain proper oil flow and pressure with Dorman variable valve timing solenoids.

4.67 out of 5 stars ( 27 )

$49.95

Melling Replacement Timing Chains

Melling replacement timing chains are available in several styles—single or double roller, link belt, or non-roller—for fitment on countless year/make/model vehicles. A key link in your engine, timing chains synchronize and transfer energy from the crankshaft to the camshaft, controlling when the intake and exhaust valves open. These solid-bushing chains offer a true bearing surface that rolls with the sprockets, eliminating chain stretch. Order the replacement designed for your specific application.

4.33 out of 5 stars ( 3 )

$22.99

$51.99

COMP Cams High Energy Timing Sets

COMP Cams High Energy timing sets are a solid choice for many applications. They are designed to meet or exceed all OE specifications, which makes them a good selection for RVs, street rods, or daily drivers.

4.33 out of 5 stars ( 27 )

$52.95

$60.95

COMP Cams Ultra Pro Magnum XD Roller Rocker Arms

Built to outlast and outperform in accuracy and strength, Ultra Pro Magnum XD roller rocker arms are engineered from durable 8650 steel and include a machined billet pushrod seat insert for a wide range of super accurate ratios. A unique and wide ratio range to fit almost any popular application from 1.5 to 1.8 in 0.5 in. increments for Chevy and 1.6 to 1.73 for various Ford applications is available. These Ultra Pro Magnum XD rockers are fully rebuildable and boast precision-sorted needle bearings and hardened roller tips. And, they work with most diameter springs and retainers. The XD design utilizes advanced FEA and CAD design and development to improve strength, stiffness and MOI (moment of inertia) optimization for drag and circle track applications.

4.58 out of 5 stars ( 59 )

$55.95

Melling Replacement Hydraulic Lifters

Melling replacement hydraulic lifters are perfect for when you're ready to freshen up your engine. Melling has designed these lifters to be within factory tolerances for the perfect fit. They are affordable and available as flat or roller lifters.

4.16 out of 5 stars ( 37 )

$22.99

PRW Pushrod Guideplates (PowerPlus+)

PRW pushrod guideplates (PowerPlus+) are made from high-treated steel alloy to prevent premature wear—and are black oxide coated to resist corrosion. They make valve operation smoother and more efficient, reducing unwanted sideways motion of the pushrod. These guideplates are recommended for use with high performance hardened pushrods.

1.0 out of 5 stars ( 1 )

$38.40

$52.98

COMP Cams Aluminum Roller Rocker Arms

COMP Cams aluminum roller rocker arms are made from a high-quality alloy, anodized for durability and good looks. They have needle-bearing trunnions to allow for high valve spring loads (over 350 lbs.) and a tensile strength of 80,000 psi. While these rockers are more expensive than COMP Cams High Energy or Magnum rockers, they're a great choice for any race application.

Not Yet Reviewed

$53.95

COMP Cams Endure-X Roller Lifters

COMP Cams Endure-X roller lifters set the standard for solid roller lifter technology. The hydraulic roller lifters are designed with oiling and inboard link bars, they're engineered to withstand the demands of aggressive cam lobe designs and increased RPM ranges. The lifters feature a wear-resistant tool steel axle, precision sorted needle bearings, and most applications include EDM oil injection technology that guarantees the bearing assembly receives a constant flow of oil. Endure-X solid roller lifters are heat treated, machined to ultra-high tolerances, and fully rebuildable.

4.45 out of 5 stars ( 40 )

$60.95

Mahle Original Lifters

Mahle Original offers a variety of high-quality valve lifters for fitment on vehicle and engine applications spanning several decades. These direct replacements will restore factory-type performance in opening cylinder valves.

Not Yet Reviewed

$24.99

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