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ACDelco GM Genuine Parts engine timing covers are OE replacements for a variety of applications. The aluminum covers are designed, engineered, and tested to rigorous standards, and are backed by General Motors. The timing cover is an essential component designed to protect the timing belt, timing chain or cam belt of your car from road debris, grime and gravel; timing belts or chains control the rotation of the camshafts and crankshaft in the internal combustion engine. Order the cover recommended for your vehicle.
( 2 )
$118.99
Summit Bucks
ACDelco GM Genuine Parts camshafts are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These are the true OE parts installed during the production of or validated by General Motors for your Chevrolet, Buick, GMC, or Cadillac vehicle. For optimal performance, choose a replacement camshaft that you know will fit and function like the original from ACDelco GM Genuine Parts camshafts.
Not Yet Reviewed
$116.99
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$161.99
Summit Bucks
ACDelco GM Genuine Parts engine valve lifter guides keep the lifters from rotating. These GM-recommended replacements deliver peace of mind that the fit, form, and function are of the highest standards. Order the guides designed for your GM year/make and engine application.
( 5 )
$12.99
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$17.99
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ACDelco GM Genuine Parts lifter valley plates are designed, engineered, and tested to rigorous standards--and backed by General Motors. They're available in a variety of styles for vehicles from the 1990s and up. These true OE replacement parts offer a precise fit for an easier install. For optimal performance, stay with the brand your vehicle came with: GM Genuine Parts.
( 2 )
$166.99
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$315.99
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COMP Cams HRT Stage 1 camshafts use the newest and most advanced lobe designs in order to produce some of the highest average power and torque available. The "Low Shock Technology" features lobe profiles designed to maximize horsepower while improving stability at higher engine speeds. These profiles are also easier on the valve springs, enhancing durability and reducing load loss. COMP Cams HRT camshafts receive the Micro Surface Enhancement (MSE) finishing process as a standard feature, which increases strength and performance by reducing surface peak roughness and provides a 250 percent improvement in the effective load bearing area, allowing for much higher loads. All HRT Stage 1 camshafts do not require upgraded valve springs.
( 1 )
$579.95
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$605.95
Summit Bucks
ACDelco GM Genuine Parts hydraulic roller lifters are designed as direct replacements for your engine, offering the quality, reliability, and durability of GM OE. They automatically help maintain a "zero" valve lash condition to help prevent valvetrain noise and unnecessary component wear. Stay with the parts brand your vehicle came with; order the lifters tailored for your specific GM make/model.
( 4 )
$23.99
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$120.99
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COMP Cams LSR Series hydraulic roller camshafts feature modern lobe profiles that take full advantage of high-flowing late model GM LS3 rectangular port cylinder heads. They are tailored for a specific rpm range and usage, from torque to high-rpm horsepower. Give your Chevy LS3 engine a shot in the arm with one of these COMP Cams LSR Series hydraulic roller camshafts.
( 26 )
$541.95
Summit Bucks
ACDelco offers engine timing covers for a variety of cars, trucks, vans, and SUVs. The aluminum replacements are available in different configurations for factory-style fitment. Some models also include gaskets and hardware. These parts are designed, engineered, and tested to rigorous standards—backed by General Motors. Order the OE direct-fit timing cover recommended for your vehicle.
( 3 )
$41.99
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$76.99
Summit Bucks
COMP Cams HRT Stage 2 camshafts use the newest and most advanced lobe designs in order to produce some of the highest average power and torque available. The "Low Shock Technology" features lobe profiles designed to maximize horsepower while improving stability at higher engine speeds. These profiles are also easier on the valve springs, enhancing durability and reducing load loss. These new HRT camshafts receive the Micro Surface Enhancement (MSE) finishing process as a standard feature, which increases strength and performance by reducing surface peak roughness and provides a 250 percent improvement in the effective load bearing area, allowing for much higher loads.
( 1 )
$579.95
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$605.95
Summit Bucks
COMP Cams Thumpr NSR Hemi Gen III/IV camshafts bring the wildly popular Thumpr sound to late model Hemi engines, while offering big power gains and no need to upgrade valve springs. The cams are made from billet steel cores for increased strength—and require no springs for a far easier installation. Great in naturally aspirated or supercharged applications, COMP Cams Thumpr NSR Hemi Gen III/IV camshafts provide excellent performance in mid- to upper-rpm ranges. Order the model designed for your vehicle and engine application.
Not Yet Reviewed
$579.95
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$605.95
Summit Bucks
ACDelco GM Genuine Parts engine valves are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These are the true OE parts installed during the production of or validated by General Motors for GM vehicles. For the optimal performance, replace your vehicle's parts with those made by the original manufacturer—ACDelco GM Genuine Parts.
( 1 )
$4.99
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$118.99
Summit Bucks
ACDelco GM Genuine Parts rocker arms are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These are the true OE parts installed during the production of or validated by General Motors for GM vehicles. That means the purchase of ACDelco GM Genuine Parts rocker arms will provide the correct fit and performance, delivering an easier install along with the optimal operation in your vehicle. The rocker arms are offered in different styles, ratios, and mounting options. They're available for hundreds of applications.
( 1 )
$4.99
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$26.99
Summit Bucks
ACDelco GM Genuine Parts engine camshaft retainer plates are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These are the true OE parts installed during the production of or validated by General Motors for GM vehicles, so you can be confident they will fit and perform just like the originals they are replacing. Select the thrust plates designed for your vehicle.
( 4 )
$15.99
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$28.99
Summit Bucks
ACDelco camshaft phasers adjust camshaft positioning while your vehicle's engine is running. These GM-recommended replacements help to ensure the camshaft rotates in the correct timing with other valvetrain components, providing optimal engine performance. They work with your vehicle's VVT solenoid to help maximize drive quality and fuel economy. ACDelco camshaft phasers are manufactured to fit like the originals and to deliver the same performance, durability, and service life you've come to know and trust.
( 1 )
$42.99
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$466.99
Summit Bucks
Taming the "whip" of your timing chain is as easy as ACDelco dampeners. These high-quality, direct-fit replacements will keep your chain in place when decelerating from high rpms, quick shifts, and on/off throttling. You, too, can restrain the whip with ACDelco timing chain dampeners in place.
( 4 )
$5.99
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$46.99
Summit Bucks
ACDelco hydraulic lifters and lash adjusters will help maintain a consistent rate between your rocker arms and the engine valves. Periodic adjustments of the valve lash are often necessary for peak performance. These OE-style replacement lifters are made to GM 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.
( 1 )
$2.99
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$26.99
Summit Bucks
ACDelco GM Genuine Parts engine valve pushrods are available for a wide range of vehicles, including many Chevrolet, Cadillac, and GMC models. These steel replacements are designed, engineered, and tested to rigorous standards, all backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Order the model recommended for your application.
Not Yet Reviewed
$3.99
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$15.99
Summit Bucks
ACDelco timing chain tensioners keep the pressure on! For your vehicle to run at optimum performance, your timing chain must be operating efficiently. These replacement tensioners will ensure your chain is in consistent working order to keep your engine marching "in time." The precision-machined and assembled parts offer an exact fit with a design for increased durability. Find the model designed for your application, then keep your timing chain in line with an ACDelco tensioner.
( 10 )
$13.99
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$94.99
Summit Bucks
PRW Dodge Cummins rocker arm systems are the perfect upgrade to provide more power and run your diesel engine more efficiently. Each rocker is made from alloy steel substantially stronger than stock. PRW Cummins shaft systems are manufactured to exceed OEM specifications as a "drop in" assembly using the stock arm ratios. The upgraded rocker arm systems are complete with everything you need, from ball adjusters and fasteners, along with silicon bronze bushings instead of OEM-style needled bearings for prolonged life expectancy. Note: some applications are pre-machined for high performance cylinder head stud kits.
( 1 )
$542.77
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$679.93
Summit Bucks
COMP Cams Chrysler Hemi phaser camshafts utilize Variable Valve Timing (VVT) technology to maximize power and performance in stock and street/strip applications. The new Hemi engines from Chrysler are great power plants straight from the factory, with technology that allows the camshafts to move in real time. Instead of scrapping this advanced system, COMP Cams has embraced it with a new line of aftermarket Hemi-specific cams. The patent-pending Hemi phaser camshafts work with phaser limiters or locks to fully utilize Chrysler's Variable Valve Timing (VVT) technology, which allows them to pick up torque in the low end of the engine, while maintaining power up high. Made from a billet core, these hydraulic roller cams are engineered tough enough to handle 5.7L and 6.4L Hemi street/strip engines. Their unique, no-springs-required design maintains piston-to-valve clearance, while enabling high performance lobes utilizing VVT, making them perfect for late model Dodge Challengers, Dodge Chargers, Chrysler 300s, Jeeps, Dodge trucks, and Mopar crate engines with VVT. COMP Cams Chrysler Hemi phaser camshafts are available as both custom and three different off-the-shelf grinds, dependent upon engine type, for improved performance over OEM options. They will require the COMP Cams phaser limiter or lock kits to limit the degree of maximum cam phasing to 14 crank degrees (7 cam degrees) and they are available separately.
( 5 )
$605.95
COMP Cams has awakened the muscle car sound--and it is nastier than ever! Thumpr Series camshafts is a line of cutting-edge hydraulic roller camshafts for engines originally equipped with flat tappet cams. With them, you can expect a substantial power increase without sacrificing reliability or ease of maintenance! The lobe profile and grind characteristics of Thumpr cams include blending an early exhaust valve opening, a long exhaust duration, and a generous amount of intake and exhaust overlap. This maximizes rough-idling tendencies, delivering a seriously aggressive exhaust note without affecting engine power output. Thumpr camshafts are available in a variety of grind profiles, each producing impressive horsepower and torque performance within a different rpm range.
( 17 )
$541.95
Summit Bucks
COMP Cams LST Series solid roller camshafts deliver "Low Shock Technology." These LST cams feature lobe profiles designed to maximize horsepower, while improving stability at higher rpm. They're also easier on the valve springs, enhancing durability and reducing load loss. For maximum horsepower with either stock or aftermarket pistons (choose the model suited to your application), COMP Cams LST Series solid roller camshafts are an excellent option for your build.
Not Yet Reviewed
$541.95
Summit Bucks
ACDelco GM Genuine Parts engine valve springs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. These replacement springs are made from factory materials--and are available for over a thousand vehicle applications from Chevy, Buick, Hummer, Pontiac, Cadillac, GMC, Isuzu, and Saab.
( 1 )
$5.99
Summit Bucks
ACDelco GM Genuine Parts valve lifter followers are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. The valve lifter followers, also known as a tappet or cam follower, play a crucial role in the operation of an engine's valvetrain. Key benefits of these components include precise valve timing to accurately control the opening and closing of the valves, optimizing combustion efficiency, reducing wear on other valvetrain components, and in the case of hydraulic lifters, they automatically compensate for slight variations in valve clearance, leading to smoother operation and less noise.
Not Yet Reviewed
$31.99
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