spark plug questions

[jopizz]

Yes, that is the correct Motorcraft standard copper plug. I believe now it's called an SP420. Other plugs are Champion 22 (RF11YC) and Autolite 45. All those plugs were original equipment plugs that were used in FE motors (352 and 390).

John

[simplyconnected]

Sorry John, I didn't see you posted first.

Thanks all.....
John: Is the Motorcraft BSF 42C a stock plug that would be appropriate?

Yes, that's a stock plug for your 390.
Other choices include:
AC Delco R83TS
Autolite 45
Autolite AP45 (#AP45DP2 - Platinum)
Champion 22 (RF11YC)

BTW, know what "AC" stands for?
ALBERT CHAMPION. Yep, same guy.
GM got his company after ol' Albert collapsed and died suddenly at age forty-nine in his suite in the Hotel Meurice after being punched by his wife's married lover in the Hotel Crillon.

Champion left his widow $15 million. Then, GM bought the majority of his company stocks from the grieving widow. Kinda makes you wonder who the winner of this story is. - Dave

[Carolina Tee Bird]

Thanks Guys, on the way to AUTOZONE!