- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
plugs for 350 block , 4 barrel carby 1967-19710 is j12yc
all plug descriptions have a series of letters number and letters..you can download the champion chart from the champion plug site
it works like--- this any plug that will screw in the hole will provide a spark
you have to measure the thread length in the head as the plug thread cannot be longer or shorter that that length
next the sealing is by taper or copper gasket so the plug will require the same as is in the head ( flat or taper ) whether the electrode protrudes or not depends on the application ( High speed engine etc)
there are factors that come into it as well like the heat range ---cold plugs for new engines and hot plugs for worn engines to burn the oil
Only use Champion spark plugs on a Chrysler product. Your local auto parts supplier should have info to give you proper plug number. There should also be a sticker maybe on your hood, that has correct number as well.It appears to be RN14PMP5 if you chose the double platinum plugs, or RN14MC5 in the standard copper core. The double platinum are about twice the price but last much longer. Gap is .050". Don't let them talk you into a different brand, Champion only. I have seen too many Chrysler vehicles over the years run bad on other plugs.