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⏱️ acdelco 12646386: gm original equipment timing chain - reliable performance for precise engine timing logo

⏱️ ACDelco 12646386: GM Original Equipment Timing Chain - Reliable Performance for Precise Engine Timing Review

6

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Average

Revainrating 3.5 out of 5  
Rating 
3.5
🚀 Engines & Engine Parts, 🏎️ Performance Car Parts & Accessories

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Description of ⏱️ ACDelco 12646386: GM Original Equipment Timing Chain - Reliable Performance for Precise Engine Timing

Designed to last the life of your engine to optimize component life. Specifically designed and validated for appropriate application to ensure proper fit in your vehicle. GM-recommended replacement part for your GM vehicle’s original factory component. Offering the quality, reliability, and durability of GM OE. Manufactured to GM OE specification for fit, form, and function.

Reviews

Global ratings 6
  • 5
    3
  • 4
    1
  • 3
    0
  • 2
    0
  • 1
    2

Type of review

Revainrating 5 out of 5

5.3 Delete ls4 dod/AFM completely. LS2 Timing Chain

Used to replace the bearing chain in my 2009 Impala ss during DOD removal and it works fine. (Also have ls2 tensioner and ls2 cam mechanism

Pros
  • Manufactured to GM OE specification for fit, form and function
Cons
  • There are other interesting options.

Revainrating 1 out of 5

HAS NO LESS MONITORING

Bought hoping it would be tighter but with an inch of play it is worse than the chain, that I wanted to replace. Bit the bullet and did the double roller top timing I couldn't even tune my camera with this ls2 because of all the slowdown caused by the slack.

Pros
  • Specifically designed and tested for each application to ensure a good fit in your car
Cons
  • Requires a socket

Revainrating 5 out of 5

Original GM parts: spare parts

original GM parts in original packaging. I have one installed on LM7 5.3 and one on LQ4 6.0. They are direct replacements for standard gears and are noticeably thicker.

Pros
  • engine parts
Cons
  • unreliable

Revainrating 5 out of 5

Good things: Engines and engine parts

Replaced my 305,000 km OEM chain as a precaution when changing the oil pump. Surprisingly, the old chain didn't stretch much compared to the slack, but here it is.

Pros
  • Control parts
Cons
  • Expensive

Revainrating 1 out of 5

HAS NO LESS OBSERVATION

bought this chain hoping it would be tighter but with an inch of play it is worse than the chain I was looking to replace. Bit the bullet and went timekeeping with a double roll, I couldn't even set my camera with this ls2 because of all the slowdown caused by the slack.

Pros
  • Spares
Cons
  • Negative impression