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55515943 - : Secondary Timing Chain for ACDelco Image

Secondary Timing Chain

ACDelco 55515943
ACDelco GM Original Equipment Engine Timing Chains synchronize the rotation of the crankshaft and camshaft(s) in an internal combustion...
$31.07
12694716 - : Timing Chain for ACDelco Image

Timing Chain

ACDelco 12694716
ACDelco GM Original Equipment Engine Timing Chains synchronize the rotation of the crankshaft and camshaft(s) in an internal combustion...
$32.07
55489211 - : Timing Chain for ACDelco Image

Timing Chain

ACDelco 55489211
ACDelco GM Original Equipment Engine Timing Chains synchronize the rotation of the crankshaft and camshaft(s) in an internal combustion...
$15.70
55495936 - : Timing Chain for ACDelco Image

Timing Chain

ACDelco 55495936
ACDelco GM Original Equipment Engine Timing Chains synchronize the rotation of the crankshaft and camshaft(s) in an internal combustion...
$56.18
55514729 - : Timing Chain for ACDelco Image

Timing Chain

ACDelco 55514729
ACDelco GM Original Equipment Engine Timing Chains synchronize the rotation of the crankshaft and camshaft(s) in an internal combustion...
$11.87
12615873 - : Variable Valve Timing (VVT) Solenoid for ACDelco Image

Variable Valve Timing (VVT) Solenoid

ACDelco 12615873
GM Genuine Parts Engine Variable Valve Timing Solenoids are designed, engineered, and tested to rigorous standards, and are backed by...
$137.33
12662736 - : Intake Variable Valve Timing (VVT) Solenoid for ACDelco Image

Intake Variable Valve Timing (VVT) Solenoid

ACDelco 12662736
GM Genuine Parts Engine Variable Valve Timing Solenoids are designed, engineered, and tested to rigorous standards, and are backed by...
$45.52
12636175 - : Variable Valve Timing (VVT) Solenoid for ACDelco Image

Variable Valve Timing (VVT) Solenoid

ACDelco 12636175
GM Genuine Parts Engine Variable Valve Timing Solenoids are designed, engineered, and tested to rigorous standards, and are backed by...
$61.14
19419980 - : Valve Rocker Arm Oil Control Valve for ACDelco Image

Valve Rocker Arm Oil Control Valve

ACDelco 19419980
GM Genuine Parts Engine Rocker Arm Oil Control Solenoids are designed, engineered, and tested to rigorous standards, and are backed by...
$135.96
12662737 - : Exhaust Variable Valve Timing (VVT) Solenoid for ACDelco Image

Exhaust Variable Valve Timing (VVT) Solenoid

ACDelco 12662737
GM Genuine Parts Engine Variable Valve Timing Solenoids are designed, engineered, and tested to rigorous standards, and are backed by...
$44.94
12679100 - : Exhaust Variable Valve Timing (VVT) Solenoid for ACDelco Image

Exhaust Variable Valve Timing (VVT) Solenoid

ACDelco 12679100
GM Genuine Parts Engine Variable Valve Timing Solenoids are designed, engineered, and tested to rigorous standards, and are backed by...
$46.78
19185637 - : Intake Variable Valve Timing (VVT) Solenoid for ACDelco Image

Intake Variable Valve Timing (VVT) Solenoid

ACDelco 19185637
GM Genuine Parts Engine Variable Valve Timing Solenoids are designed, engineered, and tested to rigorous standards, and are backed by...
$111.58

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How to Identify Worn Camshafts, Lifters, & Parts Early

The valvetrain is the mechanical heart of your engine, and internal components like the camshaft and lifter are responsible for the precise synchronization of intake and exhaust cycles. As engines in Chevrolet, Ram, and Ford vehicles reach higher mileages, identifying subtle mechanical changes can prevent a total engine rebuild.

Step-by-Step Guide to Inspecting Camshafts & Lifters

1. Listen for Rhythmic Tapping

Monitor the top of the engine for a metallic clacking sound that increases in frequency with engine speed.

2. Inspect Valve Cover Interior

Remove the cover and look for metallic glitter in the oil.

3. Perform Visual Lobe Check

Rotate the engine by hand and inspect each lobe for scoring or flat spots that indicate the hardening has failed.

4. Measure Lobe Lift

Use a dial indicator to measure the lift of each lobe. any variation between cylinders signals a failing camshaft.

5. Check Lifter Plunger Movement

Press on the lifters when the valve is closed. A lifter that feels spongy has failed internally.

6. Inspect Cam Bearings

Check the bearing journals for deep scratches or discoloration from heat.

Other Key Engine Parts

  1. Valve Covers: Protect the valvetrain and should be checked for warping or leaks during inspection.
  2. Full Set Gaskets: The most cost-effective way to obtain all seals required for an engine top-end repair.
  3. Cylinder Heads: The structural housing for the entire valvetrain; check for guide wear during cam replacement.
  4. Timing Belts & Chains: These drive the camshaft; always inspect the timing drive when the engine is opened.

Shop Quality Valvetrain Parts at FindVintageParts.com

Maintain the surgical precision of your engine with parts that meet the original factory blueprints. For help selecting the right OEM camshaft or lifters for your exact model, contact us at FindVintageParts.com today.