The valvetrain is the mechanical connection between the camshaft and intake and exhaust valves. It transforms the profiles of the rotating cam lobes into the opening and closing motion of the valves. Overhead Valve (OHV) engines have the most complex valvetrains with lifters, pushrods, and rocker arms between the cam and valves, while Overhead Camshaft (OHC) engines are much simpler, with some designs having only bucket lifters between the cam and valves.

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    • (0 reviews)
      # sp19815
      Original Roller Rockers by Harland Sharp®. If you plan on adding performance to your street machine or building a serious racer, Harland Sharp's Original series roller rocker arms are recommended for you. Using the very latest...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $31.71 - $531.42
    • (0 reviews)
      # sp29340
      High Compression Intake Valve Set by Blox Racing®. BLOX Racing one-piece valves are forged out of EV8 stainless steel for maximum strength and reliability. Each valve then undergoes a hardening treatment using black nitride, which...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $104.00 - $128.00
    • (0 reviews)
      # sp9020
      Intake Valve by COMP Cams®.
      $10.69 - $164.55
    • (0 reviews)
      # sp29034
      DCI COMP Cylinder Head by RHS®. Designed utilizing the latest technology, this product by RHS features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or...
      $453.34 - $1,228.81
    • (0 reviews)
      # sp23062
      Stainless Steel Valves by Edelbrock®. Designed utilizing the latest technology, this product by Edelbrock features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $21.40 - $201.27
    • (0 reviews)
      # sp4992
      Hydraulic Roller Lifter Kit by Edelbrock®. Edelbrock's high performance hydraulic roller lifters for small-block Chevy, big-block Chevy and small-block Ford are the perfect match for street and high performance applications. With...
      Lifters are made from 86L20 steel and the case is heat-treated to 50-52c hardness to a depth of .010" - .015"Each lifter is tested and assembled to high quality standards
      $83.89 - $618.47
    • (0 reviews)
      # sp28902
      High Performance Replacement Valve Lock by Melling®. New Melling valve keepers (valve locks) should be used to install both reclaimed and new engine valves.
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $1.53 - $5.08
    • (0 reviews)
      # sp28903
      High Performance Replacement Valve Spring Retainer by Melling®. Melling valve spring retainers are a critical piece of the valve spring system that provides an important part of the geometry needed to assure the best valve train...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $6.66 - $18.69
    • (0 reviews)
      # sp28897
      High Performance Pushrod Guide Plate by Melling®. Melling lists several GM and Ford guide plate applications as a part of the Melling Select program.
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $6.30 - $30.91
    • (0 reviews)
      # sp28898
      High Performance Replacement Chrome Moly Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications.
      $8.04 - $13.74
    • (0 reviews)
      # sp28904
      High Performance Rocker Arm Stud by Melling®. Melling recommends new rocker arm studs with every engine rebuild.
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $2.86 - $2.92
    • (0 reviews)
      # sp28896
      High Performance Lifter by Melling®. Designed utilizing the latest technology, this High Performance Lifter by Melling features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $7.45 - $524.69
    • (0 reviews)
      # sp22981
      Sportsman™ Engine Exhaust Valve by COMP Cams®. Single Lock Groove.
      $12.05 - $132.96
    • (0 reviews)
      # sp9030
      Valvetrain Kit by COMP Cams®.
      $335.41
    • (0 reviews)
      # sp53463
      Standard Compression Intake Valve Set by Blox Racing®. Set of 8. BLOX Racing one-piece valves are forged out of EV8 stainless steel for maximum strength and reliability. Each valve then undergoes a hardening treatment using black...
      High quality at an affordable priceExpertly made from premium materials
      $128.00
    • (0 reviews)
      # sp29339
      High Compression Exhaust Valve Set by Blox Racing®. Each valve then undergoes a heat treatment process to increase strength then coated using black nitride to provide superior wear resistance and minimize power-robbing friction.
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $104.00 - $128.00
    • (0 reviews)
      # sp53462
      Standard Compression Exhaust Valve Set by Blox Racing®. Set of 8. Each valve then undergoes a heat treatment process to increase strength then coated using black nitride to provide superior wear resistance and minimize...
      High quality at an affordable priceExpertly made from premium materials
      $128.00
    • (0 reviews)
      # sp19333
      Stainless Steel Valves by Brian Crower®. BC valves are one piece design with a friction welded Stellite tip for the best possible performance. Every valve is fully machined and features a swirl polished finish under the head.
      $143.38 - $215.06
    • (0 reviews)
      # sp28663
      Engine Valve by Brodix®. Brodix Steel Valves are made from high-quality steel and are designed for use in Brodix cylinder heads.
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $26.70 - $32.29
    • (0 reviews)
      # sp21547
      Rocker Arm by Crower®. Perfect combination of power and mileage with extended rpm range. Works well with stock and near-stock engines and drive trains. Crower combines this experience with our manufacturing know how to create the...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $52.68 - $611.23
    • (0 reviews)
      # sp28755
      Head Parts Kit by Dart®. Dart parts kits include everything you need to assemble a cylinder head. Stainless steel valves, springs, locks, retainers, seals, studs, and guide-plates. These kits contain the same high quality...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $131.77 - $398.29
    • (0 reviews)
      # sp58026
      Big Cheaf Intake Valve by Del West®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...
      Proven to outperform anything else on the marketMade using the highest grade materials possible
      $137.51 - $878.52
    • (0 reviews)
      # sp58032
      Titanium Intake Valve by Del West®. All Del West valves are completely CNC machined and precisionground from domestically traceable MIL-spec Ti-6242 vacuum arc triple melt titanium. All critical dimensions of the valves are...
      Chromium-Nitride is a thin yet extremely durable, low-friction coating, applied by plasma vapor-deposition to seats and stems. It has been competition-proved to reduce rebuild frequency over more than two years of dirt-track racingThere’s no cost premium for a superior product - prices are the same as with machined-from-solid, Moly-coated valves
      $133.75 - $911.94
    • (0 reviews)
      # sp58027
      Exhaust Valve by Del West®. Chrome Stem. 8 per Pack. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...
      Proven to outperform anything else on the marketMade using the highest grade materials possible
      $922.94
    • (0 reviews)
      # sp58031
      Titanium Exhaust Valve by Del West®. All Del West valves are completely CNC machined and precisionground from domestically traceable MIL-spec Ti-6242 vacuum arc triple melt titanium. All critical dimensions of the valves are...
      Chromium-Nitride is a thin yet extremely durable, low-friction coating, applied by plasma vapor-deposition to seats and stems. It has been competition-proved to reduce rebuild frequency over more than two years of dirt-track racingThere’s no cost premium for a superior product - prices are the same as with machined-from-solid, Moly-coated valves
      $136.86 - $991.76
    • (0 reviews)
      # sp58025
      Big Cheaf Exhaust Valve by Del West®. 8 per Pack. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...
      Proven to outperform anything else on the marketMade using the highest grade materials possible
      $991.76
    • (0 reviews)
      # sp32739
      Nitro Rocker Arms by Elgin®. Nitro™ Rocker Arms by Elgin®, 16 Pieces. Elgin Nitro rocker arms feature a long-slot design and advanced surface hardening that provides significantly increased resistance to wear. These exclusive...
      Stamped steel design for high-performanceSuperior heat treat
      $139.04 - $152.54
    • (0 reviews)
      # sp32741
      Rocker Arms by Elgin®. When it comes to precision engineered rocker arms, the Elgin brand offers the perfect choice for virtually every competitive challenge. Our roller-tip rockers are stamped from high-strength steel, then...
      Stamped steel design for high-performanceSuperior heat treat
      $5.56 - $175.49
    • (0 reviews)
      # sp19403
      6000 Series Competition Valves by Ferrea®. The 6000 Series Competition Valves are designed to provide excellent reliability in an environment of high spring pressures and roller cams, at a budget price. They have higher fatigue...
      $20.86 - $188.62
    • (0 reviews)
      # sp28815
      Hyd Roller Lifter Kit by Chevrolet Performance®. SBC 1986 & Later.Second-design lifters are used in late-model 350 HO engines and use a higher checkball spring preload. Includes 16 lifters of P/N 17120735, 8 valve lifter guides, 1...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $368.74
    • (0 reviews)
      # sp55411
      Exhaust Valve by Chevrolet Performance®. Stock replacement valve used in the 1996 LT4 engine, and in our CT350/400, Fast Burn 385 and ZZ383/425; also in LT4 and Fast Burn heads. 1.550 valve. 11/32 stem.
      High quality at an affordable priceExpertly made from premium materials
      $55.78
    • (0 reviews)
      # sp28806
      Aluminum Valve Cover by Chevrolet Performance®. 1 Pair. Bow Tie Chevrolet Script Logo. Competition Style. People can’t see the beautiful porting artistry inside your Chevrolet Performance aluminum cylinder heads, but they can,...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $215.99 - $417.59
    • (0 reviews)
      # sp28816
      Hydraulic Lifter Kit by Chevrolet Performance®. Designed utilizing the latest technology, this product by Chevrolet Performance features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $144.44
    • (0 reviews)
      # sp28828
      Rocker Arms by Chevrolet Performance®. Designed utilizing the latest technology, this product by Chevrolet Performance features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $16.90 - $399.59
    • (0 reviews)
      # sp28817
      Intake Valve by Chevrolet Performance®. Designed utilizing the latest technology, this product by Chevrolet Performance features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $24.37 - $129.30
    • (0 reviews)
      # sp21956
      Performance Valves and Valvetrain Parts by GSC Power-Division®.
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $8.04 - $784.70
    • (0 reviews)
      # sp19814
      Heavy-Duty Roller Rockers by Harland Sharp®. Why trust your engine investment to just any no-name rocker manufacturer when you don't have to? Use Harland Sharp's heavy-duty roller rockers! These roller rockers are specifically...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $53.49 - $1,263.30
    • (0 reviews)
      # sp20937
      Vertical Bar Pressurized Oiling Roller Lifter by Lunati®. Lifter Outside Diameter: 0.842". Seat Height: 1.89".Weight: 224 g. Quantity: 16 Pieces. Developed for serious racing applications, the pressurized oiling system of these...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $699.95
    • (0 reviews)
      # sp20887
      Retro-Fit High RPM Hydraulic Roller Lifter by Lunati®. High RPM Hydraulic Roller Lifters are designed for extreme street and all out racing applications. At over 6500 RPM, the hydraulic internals of a standard roller lifter are...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $131.04 - $812.82
    • (0 reviews)
      # sp20938
      Vertical Bar Pressurized Oiling Solid Roller Lifter by Lunati®. Developed for serious racing applications, the pressurized oiling system of these lifters provides constant lubrication through the axle and to the needles. This...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $120.83 - $1,052.61
    • (0 reviews)
      # sp20864
      Horizontal Bar Pop-Up Solid Roller Lifter by Lunati®. Lunati pop-up design roller lifters are ideal for applications that need a quick cam change, whether it be during dyno testing or racing. The unique spring-loaded horizontal...
      High quality at an affordable priceExpertly made from premium materials
      $58.55 - $350.77
    • (0 reviews)
      # sp20916
      Street Performance Hydraulic Roller Lifter by Lunati®. Drop-in, retro-fit hydraulic roller lifters are ready for installation with no modifications or break-in required. Captured link bar system ensures precise lifter movement,...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $66.60 - $478.96
    • (0 reviews)
      # sp20903
      Solid/Mechanical Flat Tappet Lifter by Lunati®. Lunati Solid/Mechanical Lifters are designed to meter the exact amount of oil for optimum performance while maintaining the precise lash needed to allow the camshaft to perform at...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $9.31 - $285.56
    • (0 reviews)
      # sp20872
      Micro-Trol Hydraulic Flat Tappet Lifter by Lunati®. Lunati Micro-Trol Hydraulic Lifters are designed for performance applications where precise oil control is an absolute necessity. To obtain higher RPM potential and maximum...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $9.20 - $184.50
    • (0 reviews)
      # sp20895
      Signature Series Hydraulic Roller Lifter by Lunati®. The Signature Series Hydraulic Roller Lifters were specifically designed to eliminate valve float by performing similarly to solid roller lifters while still providing the long,...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $138.38 - $869.58
    • (0 reviews)
      # sp20933
      Valve Spring Kit by Lunati®. Based around the Lunati Signature Series Valve Springs, the Signature Series Valve Spring Kits are ideal for high stress applications such as professional drag and oval track racing. Every retainer,...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $190.70 - $429.13
    • (0 reviews)
      # sp20939
      Vertical Bar Solid Roller Lifter by Lunati®. Lunati Solid Vertical Bar Roller Lifters are manufactured from premium materials and machined to exacting tolerances. A heat treatment process further increases strength and durability....
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $39.87 - $450.96
    • (0 reviews)
      # sp26282
      by WP MAHLE Intake Valve. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you're located
      $13.23 - $26.69
    • (0 reviews)
      # sp26281
      by WP MAHLE Exhaust Valve. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you're located
      $13.91 - $38.41
    • (0 reviews)
      # sp67670
      Valvetrain Oil Deflector by Moroso®. Must use with tall valve covers. Polylocks not included. With this quality part backed by a great price, you can enjoy your vehicle so much more than you thought was possible. This Moroso part...
      Redirects oil from pushrod to fulcrum balls, rockers and springs to provide maximum lubrication and coolingExtends life of stock valvetrain assembly
      $38.94
    • (0 reviews)
      # sp29012
      Industries Stud Girdle by PRW®. Designed utilizing the latest technology, this product by PRW Industries features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured...
      CNC machinedReduces rocker stud flex
      $123.75 - $215.55
    • (0 reviews)
      # sp29011
      Industries Shaft Rocker System Complete Kit by PRW®. Designed utilizing the latest technology, this product by PRW Industries features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle,...
      Assorted shims for a quality installationAvailable for small block or big block applications
      $449.55 - $686.02
    • (0 reviews)
      # sp75709
      Alpha Series™ Spring & Retainer Kit by Skunk2®. Designed utilizing the latest technology, this product by Skunk2 features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $381.99
    • (0 reviews)
      # sp7058
      Ultra Series™ High Compression Valve Set by Skunk2®. Skunk2 Ultra Series valves are our premium line valves manufactured from HNV3 martensitic steel (IN) and EV8 austenitic steel (EX) one-piece forgings. These characteristics of...
      One-piece forgedChromium nitride coating
      $463.99
    • (0 reviews)
      # sp7054
      Alpha Series™ Valve Set by Skunk2®. With fully machined valve heads and hard chrome plating, these Alpha Series valves ensure optimized airflow. They are built from HNV3 martensitic steel (IN) and heat treated EV8 austenitic...
      Ensure optimum sealing, airflow, and stabilityMade from heat treated EV8 austenitic steel (EX) one-piece forgings and HNV3 martensitic steel (IN)
      $267.99
    • (0 reviews)
      # sp86092
      Engine Valves by Trick Titanium®. Set of 8. At Trick, we appreciate the difference in our customers’ needs and requirements, by offering a variety of solutions. We are constantly exploring new coating technologies for improved...
      High quality at an affordable priceExpertly made from premium materials
      $825.99 - $983.24
    • (0 reviews)
      # sp62553
      Rocker Arm Stopper Kit by HKS®. Designed utilizing the latest technology, this product by HKS features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $138.06
    • (0 reviews)
      # sp12479
      Valve Springs by HKS®. Designed to withstand increased valvetrain movement, these valve springs feature a specific design and construction that reduce the risk of valve-float and coil-bind on the applications with high revving...
      Built to optimize valve movementMatch the increased valvetrain movement
      $147.26 - $543.04
    • (0 reviews)
      # sp19877
      Valve Spring Kit by Kelford Cams®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $85.50 - $1,128.60
    • (0 reviews)
      # sp21734
      Performance Engine Bearings by Manley®. Designed utilizing the latest technology, this product by Manley features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $56.43 - $145.38




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    Performance valvetrain components must be much stronger to function at high RPMs and overcome stiff valve spring pressure to open larger valves. Higher valve spring pressure is needed to prevent valve float at high RPM. Performance rocker arms and valve spring retainers are made of lighter materials to enable the engine to rev easier and achieve higher RPM, and components like roller lifters and roller rockers reduce power-robbing friction.

    The OEMs switched to roller lifters long ago because roller operation made camshafts and lifters much more reliable than their flat-tappet predecessors. But reduced friction and improved durability are not the only benefits. Roller cams have much more aggressive ramp rates that would cause a flat tappet lifter to dig into the ramp.These ramp rates allow the valves to open faster and remain at high lift for most of the opening duration, which increases power. Roller cams are also much more tolerant of high valve spring pressure. Roller cam and lifter kits are available to convert older flat tappet engines.

    Performance pushrods have to operate reliably at RPMs and against valve spring pressures that would bend or break their OE counterparts. Most performance pushrods are made of strong chrome moly steel, and larger diameter pushrods are available for some applications. Overcoming friction, such as is created when rocker arms pivot on balls or shafts and slide across valve stem tips, uses horsepower. You can eliminate this friction and save weight by replacing OE steel rocker arms with lightweight aluminum roller fulcrum and roller tip rocker arms. These are often available in higher ratios to increase valve lift and power.

    Some cylinder heads can be fitted with larger valves, but they’re most often acquired as part of a complete set of performance cylinder heads. Larger valves allow more flow in and out of the combustion chamber for more power, but they can be heavier and high RPM use requires stronger valve springs to prevent valve float. High tensile strength dual or beehive springs with lightweight titanium retainers are state-of-the-art. Finally, there are some performance valvetrain components that have no OE counterpart. For example, stud girdles support and strengthen individual rocker stud valvetrains to prevent deflection.

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    Performance Valves and Valvetrain Parts Reviews

    Average rating:  5  4.8 - 17 reviews
    3 of 5
    Great Engine Valve
    Interesting tool that functions so well.
    GPosted by George (Manville, NJ) / December 5, 2016
    2003 Mazda 6
    Was this review helpful for you? Yes
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