Valves & Valvetrain Parts
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- COMP Cams®Stud Mount Rocker Arm & Pushrod Kit (RPG101)Stud Mount Rocker Arm & Pushrod Kit by COMP Cams®. The original Aluminum Rockers changed the way racing and high performance street engine builders approached valve train design. Now, COMP Cams is revolutionizing valve train performance...Next gen Rockers increase engine power, enhance valve train stability & improve oilingNew extrusion based on improvements developed through FEA analysis, resulting in an even stronger, stiffer body without compromising mass$256.95
- COMP Cams®Stud Mount Rocker Arm & Pushrod Set (RP1412-16)Stud Mount Rocker Arm & Pushrod Set (RP1412-16) by COMP Cams®. The original Aluminum Rockers changed the way racing and high performance street engine builders approached valve train design. Now, COMP Cams is revolutionizing valve train...Next gen Rockers increase engine power, enhance valve train stability & improve oilingNew extrusion based on improvements developed through FEA analysis, resulting in an even stronger, stiffer body without compromising mass$229.95
- COMP Cams®Ultra-Gold™ ARC Series Stud Mount Rocker Arm (19021-1)Ultra-Gold™ ARC Series Stud Mount Rocker Arm (19021-1) by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and knowledgeable...Developed to provide steady performance and reliabilityMade using up-to-date equipment and new technologies$43.95
- COMP Cams®Ultra-Gold™ ARC Series Stud Mount Rocker Arm Kit (19004-16)Ultra-Gold™ ARC Series Stud Mount Rocker Arm Kit (19004-16) by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and...Developed to provide steady performance and reliabilityMade using up-to-date equipment and new technologies$412.95
- COMP Cams®Ultra-Gold™ Pedestal Mount Non-Adjustable Rocker Arm Kit (19028-16)Ultra-Gold™ Pedestal Mount Non-Adjustable Rocker Arm Kit (19028-16) by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and...Developed to provide steady performance and reliabilityMade using up-to-date equipment and new technologies$655.95
- COMP Cams®Ultra-Gold™ Stud Mount Rocker Arm Kit (19021-16)Ultra-Gold™ Stud Mount Rocker Arm Kit (19021-16) by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and knowledgeable...Developed to provide steady performance and reliabilityMade using up-to-date equipment and new technologies$453.95
- COMP Cams®Ultra-Gold™ Stud Mount Rocker Arm Kit (19001-16)Ultra-Gold™ Stud Mount Rocker Arm Kit (19001-16) by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and knowledgeable...Developed to provide steady performance and reliabilityMade using up-to-date equipment and new technologies$412.95
- COMP Cams®Ultra-Gold™ Stud Mount Rocker Arm Kit (19005-16)Ultra-Gold™ Stud Mount Rocker Arm Kit (19005-16) by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and knowledgeable...Developed to provide steady performance and reliabilityMade using up-to-date equipment and new technologies$412.95
- Febi®Exhaust Rocker Arm (19479)Exhaust Rocker Arm (19479) 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$98.02
- Febi®Intake Rocker Arm (34602)Intake Rocker Arm 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$12.65
- Febi®Late Style Rocker Arm (04929)Late Style Rocker Arm (04929) 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$21.57
- Febi®Rocker Arm (33150)Rocker Arm 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 using...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$43.97
- Febi®Rocker Arm (07919)Rocker Arm (07919) 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$21.84
- Febi®Rocker Arm (49512)Rocker Arm (49512) 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$10.13
- Febi®Rocker Arm (05828)Rocker Arm (05828) 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$20.38
- Febi®Rocker Arm (07917)Rocker Arm (07917) 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$22.50
- Febi®Rocker Arm (07916)Rocker Arm (07916) 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$40.82
- CRP®Exhaust Rocker Arm (85011700)Exhaust Rocker Arm (85011700) 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$67.88
- CRP®Front Intake Rocker Arm (85011500)Front Intake Rocker Arm (85011500) 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$48.72
- CRP®Rear Intake Rocker Arm (85011600)Rear Intake Rocker Arm (85011600) 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$48.74
- Crown®Rocker Arm (68027600AA)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$34.31
- Crown®Rocker Arm (53020742AC)Rocker Arm (53020742AC) 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
- QualCast®Self-Aligning Stamped SBC 1.5 Rocker Arm (40-2737)Self-Aligning Stamped SBC 1.5 Rocker Arm (40-2737) 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....Made from high-strength materials for uncompromising durabilityDesigned to provide an excellent combination of price and quality$6.66
- DIY Solutions®Driver Side Engine Rocker Arm (ENG00475)Driver Side Engine Rocker Arm (ENG00475) by DIY Solutions®. If you're seeking to get your steel stallion back to its tip-top condition, then this top-notch replacement solution is what you should definitely look out for. When it comes...Designed to help restore your vehicle to its former gloryQuick replacement to let you enjoy an awesome ride again$319.25$350.83Save $31.58 (9%)
- DIY Solutions®Engine Rocker Arm (ENG00486)Engine Rocker Arm (ENG00486) by DIY Solutions®. If you're seeking to get your steel stallion back to its tip-top condition, then this top-notch replacement solution is what you should definitely look out for. When it comes to quality,...Designed to help restore your vehicle to its former gloryQuick replacement to let you enjoy an awesome ride again$322.47$346.75Save $24.28 (7%)
- DIY Solutions®Engine Rocker Arm (ENG00574)Engine Rocker Arm (ENG00574) by DIY Solutions®. This product is meticulously manufactured to exacting standards by industry experts using state-of-the-art equipment and the finest materials while being offered an affordable cost.Developed to comply with rigorous quality standardsExceptional quality at a budget-friendly price$28.51
- DIY Solutions®Engine Rocker Arm (ENG00473)Engine Rocker Arm by DIY Solutions®. This product is meticulously manufactured to exacting standards by industry experts using state-of-the-art equipment and the finest materials while being offered an affordable cost.Developed to comply with rigorous quality standardsExceptional quality at a budget-friendly price$35.22$38.71Save $3.49 (9%)
- DIY Solutions®Intake Engine Rocker Arm (ENG00606)Intake Engine Rocker Arm (ENG00606) by DIY Solutions®. If you're seeking to get your steel stallion back to its tip-top condition, then this top-notch replacement solution is what you should definitely look out for. When it comes to...Designed to help restore your vehicle to its former gloryQuick replacement to let you enjoy an awesome ride again$170.74$187.63Save $16.89 (9%)
- Eurospare®Driver Side Exhaust Rocker Arm (602154)Driver Side Exhaust Rocker Arm (602154) 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$9.51
- Eurospare®Driver Side Rocker Arm (602154AL)Driver Side Rocker Arm (602154AL) 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$9.65
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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