i noticed on my ls1 that one of the plugs threads in about an 1/8" if that farther in than the rest. Is that gonna cause a problem misfire or anything? The threads and plug are fine. just goes in a tad more when tightening with socket.

 

you probably have already but compare it to the other plugs to see if there is a difference. only other thing i can think of is maybe somebody buggered up the hole and had to helicoil it.

 

Well it was fine before but was a little hard to remove so i bought a chaser to clean the threads out and now it seems to thread in a little farther.

It all tightens in fine. i just wonder if it being in that small amount further will affect the way it runs or anything or if im good to go on it.

 

It shouldn't affect the way it runs enough for you to even notice, you should get a complete burn and I doubt that you'll have a misfire...

 

thanks all i needed to know. like i said its very little difference. just didnt want to put the motor in then have problems.