Valves & Valvetrain Parts
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- Febi®Valve Adjuster EccentricValve Adjuster Eccentric by Febi®. 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...Made with precision and quality in mindDesigned to meet your specific needs$6.62 - $9.93
- Febi®Valve Adjuster NutValve Adjuster Nut 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$0.61 - $1.54
- Febi®Valve KeeperValve Keeper 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 materials...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$0.66 - $1.12
- Febi®Valve Spring Retainer KeeperValve Spring Retainer Keeper 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$1.30
- Febi®Valve Stem Seal KitValve Stem Seal Kit 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$6.31 - $111.92
- Professional Parts Sweden®Engine Valve LifterEngine Valve Lifter by Professional Parts Sweden®. If you need premium-quality yet affordable replacement parts for your Volvo or SAAB, Professional Parts Sweden hits the spot. Top-of-the-line Professional Parts Sweden products are made...Direct replacement for your factory partEngineered to meet exact OEM standards$17.70 - $22.88
- Professional Parts Sweden®Valve Adjuster ShimValve Adjuster Shim by Professional Parts Sweden®. If you need premium-quality yet affordable replacement parts for your Volvo or SAAB, Professional Parts Sweden hits the spot. Top-of-the-line Professional Parts Sweden products are made...Direct replacement for your factory partEngineered to meet exact OEM standards$4.53 - $10.07
- CRP®Engine Rocker ArmEngine Rocker Arm by CRP®. 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$48.72 - $67.88
- CRP®Engine Valve LifterEngine Valve Lifter by CRP®. 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$19.82 - $44.10
- CRP®Valve Adjuster ShimValve Adjuster Shim by CRP®. 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$2.42 - $5.15
- CRP®Valve GuideValve Guide by CRP®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$2.20 - $12.48
- CRP®Valve Stem SealValve Stem Seal by CRP®. 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$0.92 - $1.35
- Crown®Engine Push RodEngine Push Rod by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck! This product is made of...Developed to improve your driving experienceConstructed to ensure ultimate operation$10.80 - $24.20
- Crown®Engine Rocker ArmEngine Rocker Arm by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!Developed to improve your driving experienceConstructed to ensure ultimate operation$22.46 - $167.39
- Crown®Engine Rocker Arm BoltEngine Rocker Arm Bolt by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!Developed to improve your driving experienceConstructed to ensure ultimate operation$10.10
- Crown®Engine Valve Guide SealEngine Valve Guide Seal by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!Developed to improve your driving experienceConstructed to ensure ultimate operation$16.51 - $21.38
- Crown®Engine Valve LifterEngine Valve Lifter by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!Developed to improve your driving experienceConstructed to ensure ultimate operation$23.29 - $175.97
- Crown®Engine Valve SpringEngine Valve Spring by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!Developed to improve your driving experienceConstructed to ensure ultimate operation$17.22 - $26.30
- Crown®Engine Valve Spring Retainer KeeperEngine Valve Spring Retainer Keeper by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!Developed to improve your driving experienceConstructed to ensure ultimate operation$9.81 - $19.93
- Crown®Engine Valve Stem Oil SealEngine Valve Stem Oil Seal by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!Developed to improve your driving experienceConstructed to ensure ultimate operation$9.36 - $21.38
- Crown®Rocker Arm NutRocker Arm Nut by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!Developed to improve your driving experienceConstructed to ensure ultimate operation$9.49
- Crown®Rocker Arm PivotRocker Arm Pivot by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!Developed to improve your driving experienceConstructed to ensure ultimate operation$10.48 - $20.41
- Crown®Valve GuideValve Guide by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!Developed to improve your driving experienceConstructed to ensure ultimate operation$16.41 - $22.11
- Vaico®Engine Valve LifterEngine Valve Lifter 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$11.45 - $36.80
- Vaico®Engine Valve Stem SealEngine Valve Stem Seal 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$10.15 - $50.26
- ARP®Rocker Arm Stud KitRocker Arm Stud Kit by ARP®. The engineers at ARP spent quite a bit of time developing these highly effective, unique oil pan studs. They’re designed to make it as easy as possible to install a pan and seal it properly. You’ll note...Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability$10.72 - $150.42
- Blox Racing®Dual Valve Spring KitDual Valve Spring Kit by Blox Racing®. 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...Blox Racing valve springs are wound using super clean, chrome silicone alloyDesigned to unlock more performance out of your vehicle$200.00
- Blox Racing®Titanium Retainer KitTitanium Retainer Kit by Blox Racing®. Blox Racing retainers are CNC-machined from the highest quality titanium available on the market. These Ti retainers are machined to exact specifications and help reduce the overall weight of the...Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability$196.00
- Blox Racing®Valve SpringsValve Springs by Blox Racing®. Blox Racing valve springs are wound using super clean, chrome silicone alloy. These valve springs are designed and engineered for both high performance street driving and all-out racing conditions. Each...Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability$160.00 - $200.00
- Dura-Bond®Rotator EliminatorRotator Eliminator by Dura-Bond®. 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...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$4.12 - $9.60
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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