Champion to NGK spark plugs

[DueceDuster]

My 340 Edelbrock heads use Champion R12YC plugs. I want to replace them with NGK plugs, I think that converts to BKR5E. I'm looking for confirmation and also what NGK's number would be for the iridium plugs. Thanks.

 

[mopar head]

Most parts stores could figure this for you, just a phone call away...

 

[dartfever]

http://www.clubplug.ca/static/pdf/ngk-cross-reference-charts.pdf
http://www.clubplug.ca/static/pdf/ngk-to-ngk-iridium-cross-reference-charts.pdf