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2003 Camshafts & Valvetrain

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Results 1 - 24 of 61

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PRW Pro Series Stainless Steel Rocker Arms

PRW Pro Series stainless steel rocker arms are manufactured from lightweight, premium quality 17-4ph stainless steel—a superior alloy high in nickel and chromium. This rigid, premium material provides outstanding fatigue resistance, and high-yield strength to help resist deflection. These rocker arms feature full-cage, friction-reducing needle bearings, and extra-large trunnions to spread out the load and reduce wear. Each rocker body is hand-polished, assembled, and carefully inspected to deliver the finest quality available to the racing and performance industry. Reduce your valvetrain mass with durable, lightweight PRW Pro Series stainless steel rocker arms. Order the set recommended for your specific vehicle and engine size. Features, items, and specs: * Wide assortment of ratios to suit almost any cam profile * Each set of 16 comes complete with PRW RockerLocs * Stud-mount design provides plenty of clearance for large diameter springs * CNC-machined pushrod cups * Heat-treated steel nose rollers and shafts resist severity of racing and minimize scrubbing

4.3 out of 5 stars ( 10 )

$27.99

$31.55


$19.50

$22.50

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Howards Cams Race Series Vertical Bar Hydraulic Roller Lifters

Howards Cams race series vertical bar hydraulic roller lifters offer proprietary hydraulic valving specifically designed for continuous operation to 6,600 rpm with ideal seat pressures between 150-160 lbs. The lifter bodies are fully machined from alloy steel bar stock and are completely micro-polished. The nose wheels are machined from 8620 material and the cases are hardened for durability. Howards Cams race series vertical bar hydraulic roller lifters are fully rebuildable.

3.5 out of 5 stars ( 6 )

$149.99


$99.50

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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 )

$390.99

$472.99


$295.50

$396.50

On Sale

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Standard Motor Variable Cam Timing Solenoids

Standard Motor variable cam timing solenoids are direct-fit OE replacements for your vehicle's original components. These solenoids effectively restores engine horsepower and torque curves while reducing emissions and improving vehicle efficiency. Standard variable cam timing solenoids have been manufactured to exceed OEM specifications for dependable, accurate, maintenance-free operation.

5.0 out of 5 stars ( 4 )

$492.99


$379.50

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Summit Racing™ Pro Diesel Camshafts

Summit Racing™ Pro diesel camshafts are available for a variety of applications, including many Chevrolet Duramax V8 engines from 2001 to 2016. The solid roller style cams are offered in different models and options, such as all low-end power performance; mid-range; or top-end gains. Explore our Pro 1, Pro 2, and Pro 3 models, then select the grind and details that best suit your truck requirements.

Not Yet Reviewed

$699.99


$449.99

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Mopar Replacement Timing Chains

Mopar Replacement timing chains are genuine Mopar parts that you can count on to supply the OE-fit and function you're expecting. Manufactured from quality materials, Mopar timing chains will get you back on the road. Select the Mopar Replacement timing chain designed for your application.

Not Yet Reviewed

$619.99


$287.50

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Crower Stud Mount Late Model Rocker Arms

Crower stud mount self-aligning rocker arms are available for late model small and big block Chevy, Dodge, Magnum trucks, and the V10 Viper. Features include: * Self-aligning roller tip to hold rocker in place * Emissions-legal certified ARB #D-410

4.0 out of 5 stars ( 6 )

$82.99


$51.50

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Cloyes Timing Chain Kits

Cloyes timing chain kits meet OE performance requirements. They utilize the latest in design and materials so you can enjoy quiet, maintenance-free performance. These assemblies are available in various styles, including link belt, single roller, and single non-roller. Order the kit designed for fitment on your specific model or engine application.

4.45 out of 5 stars ( 174 )

$388.99

$444.99


$299.50

$342.50

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Cloyes Race Billet True Roller Timing Sets

Cloyes Race Billet True Roller timing sets provide race-ready performance! These sets feature sprockets machined from premium billet steel on state-of-the-art CNC equipment to ensure the highest quality and consistency. The sprockets are induction-hardened and oil-quenched by Cloyes' in-house, multi-stage heat treat process. Sets include a Cloyes Premium True Roller chain—which features full roller action and superior strength. Side plates are cut and shaved from high-strength steel and are heat-treated for maximum fatigue resistance. Their .250 in. rollers are cold-rolled and hardened to exacting standards, increasing load and rpm capabilities. Cloyes Race Billet True Roller Speed Sets are offered with a choice of 3-or 9-keyway crank sprockets, providing multiple valve timing settings. These sets are hand-matched to qualify center distance and runout, ensuring the best performance with every set!

4.58 out of 5 stars ( 97 )

$193.99


$132.50

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Ajusa Rocker Arms

Ajusa offers rocker arms for a wide range of applications—including vehicles from Ford, Lexus, Nissan, Chrysler, Dodge, Plymouth, Mercedes-Benz, and Eagle. The steel replacement arms are available in non-roller or roller tip styles for the intake or exhaust position. These rocker arms are made from factory materials and specifications to ensure proper fitment and long-lasting performance. Since 1972; Ajusa has been a leading international manufacturer of gaskets, head bolt sets, lifters, and turbo components. They carry the world's largest range for European and Asian apps worldwide marketplace.

Not Yet Reviewed

$71.99

$129.99


$31.50

$61.50

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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.

4.59 out of 5 stars ( 73 )

$13.99


$10.50

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Mahle Original Premium Piston Ring Sets

Mahle Original piston ring sets are designed to be installer-friendly. They are pre-lapped to seat immediately, virtually eliminating break-in time. Ring materials and coatings, as well as ring tension, are all optimized for reduced friction and extended life in each application. The compression rings feature a barrel-faced contact area for more efficient compression and CNC-controlled gap chamfer to optimize compression and reduce blow-by. Intermediate rings have a reverse twist design for better groove side sealing, and taper race machining to enhance contact. The CP-20 oil ring assemblies feature a 20 degree ear angle, an exclusive feature that provides the best possible side seal against the cylinder wall, and a special chemical polish on the oil ring expander offers enhanced oil drain back. Mahle Original piston ring sets provide unmatched quality and ease of installation, making them the rings of choice for today's engine builders.

4.81 out of 5 stars ( 53 )

$129.99


$101.50

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Dayco Timing Chain Kits

Dayco's long tradition of toothed belt power transmission systems and its in-depth knowledge of functional requirements, as well as its know-how in terms of quality, testing and reliability, are also now successfully applied to chain kits. In designing the new Dayco timing chain kits, a system logic was followed to ensure that all of the elements required for replacement—that is: the chain, hydraulic tensioner, sprockets, and guides—are included with every kit. Additionally, Dayco has guaranteed that all elements of each timing chain kit comply with the technical requirements of every single component. This provides maximum functionality, silence in operation, and promotes longer transmission life. The kits are available for countless vehicles; order the replacement timing chain recommended for your application. Advantages of the Dayco timing chain kit range include: * Synergic design of each entire kit (chain, guides, tensioner, gears, and seals) * High robustness and proven reliability on test benches and in-vehicle fleet testing * High-strength steel, precision-machined tensioners to ensure reduced internal clearances for optimum control and management of the timing chain tension * High-strength plastic guides manufactured with glass fibers for additional strength * High-strength molding steel or sintered steel manufactured gears with specific heat treatments applied for the hardening of the toothed area surfaces

4.33 out of 5 stars ( 3 )

$115.99

$191.99


$52.50

$109.50

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Howards Cams OE-Style Performance Hydraulic Roller Lifters

Howards Cams OE-style performance hydraulic roller lifters are stock replacements for use in factory hydraulic roller blocks. These lifters offer the best combination for the street with reduced friction and increased torque and horsepower. They're available in various outside diameters for fitment on specific vehicle applications. Order them individually or as a set.

3.75 out of 5 stars ( 4 )

$27.99


$18.50

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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 )

$20.99

$39.99


$13.50

$30.50

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Holstein Parts Variable Valve Timing Solenoids

The variable valve timing solenoid alters the supply of oil pressure to the camshaft depending on the engine's speed and load and can either advance or retard cam position, which provides several benefits, including improved engine operation increased engine power, reduced fuel consumption, and decreased emissions. Holstein Parts focuses on using only the highest quality materials, manufactured to exacting standards for an aftermarket product that is truly built to match or exceed the OE part. Holstein Parts variable valve timing solenoids offer superior coverage for domestic and import applications. Order the model designed to fit your application needs.

5.0 out of 5 stars ( 1 )

$44.99

$122.99


$30.50

$74.50

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Astemo Variable Valve Timing Solenoids

Astemo offers variable valve timing solenoids for a wide range of vehicles, particularly many import cars and trucks. These stock replacements are built to OEM specifications for performance and longevity. The variable valve timing solenoid is a component of the variable valve timing system that manages the oil flow, depending on the engine speed and load. A VVT solenoid in good working condition improves performance and fuel efficiency. Astemo's quality control and attention to detail make their parts the go-to choice for many car manufacturers. Order the solenoid model recommended for your application.

5.0 out of 5 stars ( 1 )

$107.99

$122.99


$73.50

$76.50

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Continental OE Technology Series Timing Belts

Continental OE Technology Series timing belts are designed to deliver precise, non-slip timing. Engineered with OE Solutions Technology and made to last, these belts are constructed with enhanced rubber compounds, reinforced with fiberglass and aramid cords. They resist shrinkage and stretching; plus, the premium polymers offer exceptional heat and abrasion resistance. The molded teeth resist deformity and offer improved rigidity to ensure a long, dependable life. Hundreds of replacement belts are available for applications from the 1970s and up.

4.6 out of 5 stars ( 5 )

$37.99


$29.50

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INA Timing Chain Guides

Due to strong centrifugal forces during engine operation, the timing chain tends to drift outwards. INA timing chain guides maintain exact positioning and constant tension to cure this issue. They are made of high-tensile composite materials, resulting in a compact design characterized by extremely high rigidity. Your engine operation will be smoother and subjected to lighter loads, increasing the engine longevity. Give your engine a break and order yours today.

Not Yet Reviewed

$20.99


$10.50

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INA Timing Chains

Looking to repair your engine with high-quality components? Look no further than INA timing chains. Built to the same high standards as the original equipment manufacturers, these timing chains keep your engine in peak condition. Maintain the precision of your finely engineered engine with INA timing chains.

5.0 out of 5 stars ( 1 )

$17.99

$76.99


$6.50

$45.50

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INA Variable Cam Timing Solenoids

INA variable cam timing solenoids can phase the valve timing in an internal combustion engine to provide early opening or late closing of the intake and exhaust valves. Optimized camshaft phasing reduces exhaust emissions, reduces fuel consumption, and improves performance and driver comfort. Camshaft phasing is an important element today in developing more fuel-efficient engines.

Not Yet Reviewed

$334.99


$63.50

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INA Camshaft Lifters and Followers

INA lifters and followers will help maintain a consistent rate between your rocker arms and the engine valves. These OE-style replacement lifters and followers are made to factory specs, maintaining a proper lash condition while preventing unnecessary valvetrain wear and noise. Order the style and model designed for fitment on your specific vehicle.

5.0 out of 5 stars ( 2 )

$9.99

$18.99


$6.50

$13.50

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Cloyes Replacement Timing Chain Tensioners

Over time, timing chains suffer from wear and tear that can result in timing chain stretch and timing fluctuations. Cloyes offers these replacement timing chain tensioners for a variety of applications. They're made of high-quality materials to increase your cam timing accuracy.

4.38 out of 5 stars ( 13 )

$56.99


$33.50

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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 )

$57.99


$41.50

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