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ok, before i put my plugs back in i want to make sure the gaps are ok. Im running the ngk tr55 iridium plugs. what is the gap supposed to be? They are at .060 right now and i've seen anything from .044 to .060
I spoke to Brandon @ NGK and he does not reccomend the Tr55 for the LS1, he advises TR6 or TR5 gapped at 35-38 for modified engines at 11:00 compression and higher. .
I spoke to Brandon @ NGK and he does not reccomend the Tr55 for the LS1, he advises TR6 or TR5 gapped at 35-38 for modified engines at 11:00 compression and higher. .
FYI
just curious, any reason behind that. If you go to their site, one of the plugs are the tr55 that come up when searching for the vette plugs.