What spark plugs to use ?

FastKyPPV · Post by **FastKyPPV** » Thu Oct 12, 2023 9:27 pm

What is the best spark plug and gap to run in a 2012 6.0 Caprice . Car is tuned and deleted, LS9 cam, vcm OTR intake, JBA long tubes and a 3” open exhaust. What do you guys run and the gap — Thanks for any help

s/c'd cav · Post by **s/c'd cav** » Fri Oct 13, 2023 11:26 am

stock plugs , stock gap , and in my old 11 second cammed G8 i had the gap tightened up a smidge

until you are boosted its not worth anything else

FastKyPPV · Post by **FastKyPPV** » Fri Oct 13, 2023 11:48 am

Is that AC Delco Iridium ?

Fudgehog · Post by **Fudgehog** » Sat Oct 14, 2023 3:16 am

I used the MSD iridiums, 3712.

Mooseman · Post by **Mooseman** » Sun Oct 15, 2023 8:26 am

Same here except stock cam and tuned. Original plugs. 400hp.

s/c'd cav · Post by **s/c'd cav** » Mon Oct 16, 2023 11:20 am

FastKyPPV wrote: ↑Fri Oct 13, 2023 11:48 am Is that AC Delco Iridium ?

that is the stock plug yes

New Caprice - Discussion forums

What spark plugs to use ?

What spark plugs to use ?

Re: What spark plugs to use ?

Re: What spark plugs to use ?

Re: What spark plugs to use ?

Re: What spark plugs to use ?

Re: What spark plugs to use ?