6C 2500 & 8C Spark Plug Usage

Does anyone know the spark plug number & gap setting for a 6C 2500 1952-1950 2.4L? Also, a 2008 8C 4.7L.

We would like to add these models in our spark plug catalog.

Thank you for your assistance!

Bruce Wagner
Sr. Catalog Editor
Autolite Spark Plug
bruce.wagner2@honeywell.com