Valves & Valvetrain Parts
- ACDelco®GM Genuine Parts™ Engine Valve Lifter Oil Manifold FilterGM Genuine Parts™ Engine Valve Lifter Oil Manifold Filter by ACDelco®. GM Genuine Parts Engine Valve Lifter Oil Manifold Filters are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine...Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors$7.95 - $9.61
- Elring®Engine Variable Timing Adjuster GasketEngine Variable Timing Adjuster Gasket by Elring®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$5.48
- ACDelco®GM Genuine Parts™ Engine Valve Lifter Guide Retainer BoltGM Genuine Parts™ Engine Valve Lifter Guide Retainer Bolt by ACDelco®. GM Genuine Parts Bolts are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These bolts fasten vehicle components...Fastens vehicle's components togetherSome GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)$5.43 - $6.82
- ACDelco®GM Genuine Parts™ Engine Valve Lifter Oil Manifold GasketGM Genuine Parts™ Engine Valve Lifter Oil Manifold Gasket by ACDelco®. GM Genuine Parts Engine Valve Lifter Oil Manifold Gaskets are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine...Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors$9.57 - $75.82
- ACDelco®Genuine GM Parts™ Camshaft FollowerGenuine GM Parts™ Camshaft Follower by ACDelco®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet your...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$20.50 - $90.45
- ACDelco®Genuine GM Parts™ Camshaft Follower GuideGenuine GM Parts™ Camshaft Follower Guide by ACDelco®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$25.16
- Mopar®Camshaft FollowerCamshaft Follower by Mopar®. Want your prized possession to look and perform the way it was designed to? Then top-of-the-line Mopar automotive parts and accessories are for you. Made using the latest manufacturing technology to meet the...Ideal solution to keep your vehicle in top shapeCrafted from premium-grade materials and the latest technology$5.22 - $352.08
- Mopar®Charging ValveCharging Valve by Mopar®. A/C LINE. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...Carefully crafted from premium materialsExcellent corrosion and wear resistance$30.02
- Mopar®O RingO Ring by Mopar®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials using...Carefully crafted from premium materialsExcellent corrosion and wear resistance$1.70 - $9.57
- Mopar®Push NutPush Nut by Mopar®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials using...Carefully crafted from premium materialsExcellent corrosion and wear resistance$1.11 - $8.77
- Mopar®Rocker FrameRocker Frame by Mopar®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials...Ideal solution to keep your vehicle in top shapeCrafted from premium-grade materials and the latest technology$9,496.40
- Genuine®Camshaft FollowerCamshaft Follower by Genuine®. If your engine parts is in need of repair, don’t compromise the performance and safety of your car with suspect, off-brand replacement parts from the local auto parts chain store. On our website...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$8.19 - $606.59
- Original Equipment®Camshaft FollowerCamshaft Follower by Original Equipment®. Looking for high-quality replacement parts to restore the performance of your vehicle? Then Original Equipment automotive parts are for you. They are manufactured from the finest materials...Perfect replacement for your damaged or worn out original partMade using high-grade materials for long-lasting dependability$8.15 - $41.74
- Vaico®Camshaft Adjustment Central ValveCamshaft Adjustment Central Valve by Vaico®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$72.69 - $231.02
- Vaico®Camshaft FollowerCamshaft Follower by Vaico®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver...Made with precision and quality in mindDesigned to meet your specific needs$12.37 - $30.48
- Eurospare®Camshaft FollowerCamshaft Follower by Eurospare®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$4.62 - $5.00
- Febi®Camshaft FollowerCamshaft Follower by Febi®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$6.28 - $30.58
- AJUSA®Camshaft FollowerCamshaft Follower by AJUSA®. 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 quality at an...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$40.74 - $60.57
- Crane Cams®Camshaft FollowerCamshaft Follower by Crane Cams®. High-performance engine builders and street tuners who crave for maximum performance out of their vehicle, choose these top-grade performance products painstakingly designed by Crane Cams. Revel in an...Designed to unlock more performance out of your vehicleBump up engine power to the next level$11.92
- INA®Camshaft FollowerCamshaft Follower by INA®. The INA is a leading automotive and industrial supplier worldwide. The Company stands for the highest quality, outstanding technology and distinctive innovative ability. The way to convince customers in the...Made from sturdy materialsGreat design and function$9.44 - $27.67
- QualCast®Cam FollowerCam Follower by QualCast®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit for a...Made from high-strength materials for uncompromising durabilityDesigned to provide an excellent combination of price and quality$9.82 - $16.76
- AE®Camshaft FollowerCamshaft Follower by AE®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$13.07 - $19.87
- Allmakes 4x4®Camshaft FollowerCamshaft Follower by Allmakes 4x4®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$11.42 - $12.88
- GMB®Camshaft FollowerCamshaft Follower by GMB®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$24.12
- Kolbenschmidt®Cam FollowerCam Follower by Kolbenschmidt®. Manufactured with customers in mind using most modern methods and leading-edge equipment, this premium-grade product is excellent in every detail. It ensures impeccable quality and maximum reliability and...Unique craftsmanship paired with advanced technologyDesigned to ensure a high level of reliability and security$10.88 - $19.82
- TRW®Camshaft FollowerCamshaft Follower by TRW®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit for a...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$16.62 - $17.77
- Enginetech®Engine ValvesEngine Valves by Enginetech®. The Engine Builder's Source, can locate the right part for nearly any rebuild application. Offering a full line of internal engine parts for domestic, import and high performance applications, Enginetech...Rigorously tested to withstand years of abuseDesigned with innovative manufacturing techniques$2.32 - $1,839.55
- DNJ Engine Components®Engine ValveEngine Valve by DNJ Engine Components®. Save your time and hassle when replacing your worn out or cracked valve with this superior part expertly crafted by DNJ. Designed to meet or exceed the highest OE standards, the top-notch valve...Designed to replace your worn out or cracked valveLooks, fits and performs just like your OE part$5.47 - $35.88
- Melling®Engine ValveEngine Valve by Melling®. Precision engineering, selection of superior grade alloy materials and advanced manufacturing processes ensure that Melling valves meet the exacting specifications required for efficient, durable and powerful...Right for your vehicle and lifestyleMade from high-quality materials for ultimate durability$4.25 - $38.70
- QualCast®Engine ValveEngine Valve by QualCast®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit for a...Made from high-strength materials for uncompromising durabilityDesigned to provide an excellent combination of price and quality$4.16 - $49.28
Valves allow gases to flow in and out of the cylinders, and seal the combustion chambers so compression can develop. They open and close in response to the lobes on the camshaft via the valvetrain. The air/fuel mixture flows in when the intake valve opens, and the spent exhaust gases flow out when the exhaust valve opens after the power stroke. Every engine has at least one intake and exhaust valve, while many have a pair of each.
Valvetrains differ according to camshaft location. On Over Head Valve engines the cam is in the cylinder block. On Over Head Cam engines one or two cams are on the cylinder head. On OHV engines lifters ride on the camshaft lobes, pushrods transfer motion up to the cylinder head, and rocker arms pivot on shafts or studs actuating the valves. OHC valvetrains may have pivoting rocker type followers and lash adjusters or buckets between the cam and valves.
Valvetrain problems are often caused by excessive clearance. As cam lobes, lifters/followers, pushrods, and rocker arms wear, clearance is increased. Once clearance starts to increase, the pounding experienced by each component becomes greater as the lash opens and is taken up during valve operation. This can result in bent pushrods and broken rocker arms. The most common valve failure is overheating, especially on exhaust valves, which causes the valve to “burn” and distort and/or crack.
Miles and engine heat can also take their toll on valve springs. The valve springs must have enough pressure to keep the valves closed and maintain valve lash. Seat pressure is usually 70-90 lbs. on a stock engine with open pressure at 200 lbs. or more. Weak valve springs can’t exert the proper amount of pressure, which can cause misfire and loss of power as engine speed increases, resulting in “valve float”, where the valves fail to close. In extreme cases valve float can allow the valves to contact the pistons on some engines, bending or breaking the valves and cracking or breaking the pistons.
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. Most performance pushrods are made of strong chrome moly steel, and larger diameter pushrods are available for some applications. No matter whether you’re looking for a stock replacement or a performance unit, we are your one-stop shop.
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