Spark Plugs for 14 LTZ

[Nascarnate326]

My truck has 168k on it, thinking it’s time to replace the factory plugs. 

 

 

What are you running ? Should i

stick with the stock AC Delco plugs?

[CamGTP]

Stay with the stock delco plugs. No real reason to switch them up.

 

Also cylinder 8 does suck to get at.

[1SLOW1500]

Stay stock unless you have some mods. But donwires at the same time. It was under $40 for ac delco performance of amazon.

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[16LT4]

Another one for stock AC Delco plugs and wires.

 

As much as the #8 plug "sucks" to get to (it doesn't, really), it is still easier than the easiest Ford V8 plug, and no more difficult than a V8 G-body.  On my F150, that position (#4 in Ford-speak) requires removal of the PCM and its bracket; a proper plug job on that truck takes about 4 hours (without breaking any).  I did plugs/wires on my '16 K2 in about 45 minutes, and that was taking my time.

[1SLOW1500]

Or you can just buy the gm ls #8 spark plug tool. I bought mine from snap on back in 2001 for my camaro. No issue.

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[EaglesZ71]

34 minutes ago, 1SLOW1500 said:

Or you can just buy the gm ls #8 spark plug tool. I bought mine from snap on back in 2001 for my camaro. No issue.

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Do you have a picture of this tool.

I tried to google it with no luck.

Thank you

John

[1SLOW1500]

Do you have a picture of this tool.
I tried to google it with no luck.
Thank you
John

Yes I do.

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[1SLOW1500]

Also an another gm needed tool.

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[CamGTP]

I just lay on the engine/core support and stick my normal spark plug socket on the plug first and snake my ratchet down there. It's a pretty snug fit but once I crack the plug loose, that's all I need.

[1SLOW1500]

Sorry should explain. The chrome shocket is the same as the one gm later sold. It slides on and just extends the 5/8 past the headers the spark plug goes through the end. So you can do anything socket or box or open wrench.
2nd photo is a 5/8 triple swivel in impact. Snap on guy said it was a must. I bought and thought I was had but on trans swaps it is worth it.

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[EaglesZ71]

Thank you

@1SLOW1500