Valves & Valvetrain Parts

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    • (0 reviews)
      # sp21473
      Push Rod by Sealed Power®. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or...
      Direct replacementManufactured to strict engineering quality standards
      $1.46 - $19.60
    • (0 reviews)
      # sp122527
      Engine Push Rod Set by Pioneer Automotive®. Designed utilizing the latest technology, this product by Pioneer Automotive 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
      $25.96 - $40.11
    • (0 reviews)
      # mpn1146648754
      Exhaust Push Rod by Pioneer Automotive®. Designed utilizing the latest technology, this product by Pioneer Automotive 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
      $2.97
    • (0 reviews)
      # sp136820
      Push Rod by SBI®. The S.B. International push rod specifications have been changed. Last listing required the use of "Graduated Checking Balls" when measuring drilled or cupped push rods. These graduated balls were inserted into the...
      Engineered with love for enginesMade for quiet and well-coordinated work of your engine
      $1.67 - $6.77
    • (0 reviews)
      # mpn4555120337
      Ball End Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $2.53
    • (0 reviews)
      # mpn4555120876
      Intake Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $2.28
    • (0 reviews)
      # mpn4555120611
      Intake and Exhaust Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $1.92
    • (0 reviews)
      # mpn4555120510
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $4.17
    • (0 reviews)
      # mpn4555121995
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $2.06
    • (0 reviews)
      # mpn4555122214
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $3.82
    • (0 reviews)
      # mpn902796669
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $1.64
    • (0 reviews)
      # mpn4555122037
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $2.50
    • (0 reviews)
      # mpn4555120235
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $2.12
    • (0 reviews)
      # mpn4555121865
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $3.82
    • (0 reviews)
      # mpn902799746
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $2.14
    • (0 reviews)
      # mpn4555122239
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $3.13
    • (0 reviews)
      # mpn4555120806
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $6.09
    • (0 reviews)
      # mpn902799732
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $1.85
    • (0 reviews)
      # mpn4555120450
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $1.92
    • (0 reviews)
      # mpn4555121173
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $1.12
    • (0 reviews)
      # mpn4555120402
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $4.73
    • (0 reviews)
      # mpn4555120241
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $2.04
    • (0 reviews)
      # mpn4555121916
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $1.74
    • (0 reviews)
      # mpn4555120174
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $2.80
    • (0 reviews)
      # mpn4555120470
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $8.07
    • (0 reviews)
      # mpn4555121918
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $2.29
    • (0 reviews)
      # mpn4555120708
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $1.95
    • (0 reviews)
      # mpn4555120435
      Push Rod by Melling®. With Cast Type Rocker Arms. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $6.37
    • (0 reviews)
      # mpn902796671
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $1.82
    • (0 reviews)
      # mpn4555121130
      Push Rod by Melling®. Melling offers a broad selection of pushrods for both standard and performance engine applications. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $1.73




    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. Clicking noise in the valvetrain area can indicate excessive clearance, which can often be confirmed with a visual inspection. Check pushrods for a bent condition by rolling them on a flat surface. Inspect rocker arms for wear at the pivot and valve contact areas.

    The most common valve failure is overheating, especially on exhaust valves, which causes the valve to “burn” and distort and/or crack. The exhaust valve is exposed to extreme temperatures, and the valve must be able to seat fully to transfer this heat to the cylinder head. Carbon buildup, incorrect valve adjustment, or any other factor that keeps the valve from seating will prevent heat transfer. A burnt valve will not be able to seal the combustion chamber, causing reduced compression and power from that cylinder. Some performance engines have sodium filled exhaust valves to help reduce their temperature.

    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.

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    Valves & Valvetrain Parts Reviews

    Average rating:    4.5 - 25 reviews
    5 of 5
    Perfect Fit
    I would say I’m a happy customer. Would definitely use this site again.
    Posted by Karlton (Lakeland, FL) / October 31, 20181997 Nissan Sentra
    Was this review helpful for you? Yes
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