Header install, new plugs? Photo of mine

[StingrayblueSS]

Originally Posted by rangerdave1

Yeah I was a bit surprised about the oil around the threads however it looks worst in the photo then what it actually is. There was no oil sitting in the spark plug recess like I have seen on a quick internet search.. Who knows if the previous owner may have put a dab of oil on the threads to prevent seizing up... I hope that's all it was.

I installed the old plugs for the time being as I could not make up my mind on which plugs to buy. Local auto parts store gave me two options; NGK Iridium ($9/each) and NGK Ruthenium HX ($13.5/each)..

I assume the stock plugs are platinum so either would be an improvement I assume..

Any suggestions?

How many miles on your Camaro and how many miles on the plugs is what I'm wondering. If it runs fine now don't worry about it.

[rangerdave1]

It has 52k miles, and runs great. Idles smooth, pulls hard. No smoke, no smells.

[Chris49066SS]

Originally Posted by rangerdave1

Yeah I was a bit surprised about the oil around the threads however it looks worst in the photo then what it actually is. There was no oil sitting in the spark plug recess like I have seen on a quick internet search.. Who knows if the previous owner may have put a dab of oil on the threads to prevent seizing up... I hope that's all it was.

I installed the old plugs for the time being as I could not make up my mind on which plugs to buy. Local auto parts store gave me two options; NGK Iridium ($9/each) and NGK Ruthenium HX ($13.5/each)..

I assume the stock plugs are platinum so either would be an improvement I assume..

Any suggestions?

The stock plugs are iridium

[LsxDoctor]

Change those! Personally I run NGK TR6 or some cheap copper autolites, I change mine very often though. Given your mods I'd stick with OEM