Technical Plugs for 8BA Edelbrock heads ?

What plugs do I need for the Edelbrock heads?


Thanks,

jim

 

Champion RC12YC.

 

Pushrods on an 8BA??

 

He's a valve in head guy. (as if I had a problem with that). Probably needs to first post an intro then cruise and learn before posting.

 

First question - vintage stuff or modern stuff? The plug reach is 7/16 on the vintage ones and 3/4" on the modern ones. There are a TON of different 3/4" reach plugs available - from every manufacturer out there.

I prefer to run NGK plugs - with a flat gasket and the heat range depends on your engine configuration, but probably a 6 or 7 (in NGK nomenclature).

For those who don't know - the heat range "number" is backwards between NGK and Champion.

Champion -> higher the number, hotter the plug
NGK -> higher the number, colder the plug

Also, you don't want any sort of extended reach plug - will hit your valves.

 

The 8BA that came in the Roadster had Autolite 437s
With the 2 97’s it would load up especially if it idled too long
After doing a search on the HAMB I switched them out with NGK B-4Ls
so far so good

 

I've always ran Champion RC10 in my flatheads since the 60's.

 

An NGK plug with a heat range of 4 is pretty hot - but if you're not experiencing detonation and the porcelain looks okay, then run em' ! LOL

 

I went to champion H12 Hotter that H10 and works fine with multi carbs

 

As said so far so good, I guess I need a lesson on setting idle fuel mixture on the 97’s

 

Thanks all. Been a while since I ask this question.
Things have been messed up since wife Passed in Jan.

Thanks,

jim

 

Sorry to hear that, Jim.

 

I'm running Ofenhauser heads and intake with two Holley 94's with no problems. Only problems I've had is leaking carbs and Charlie Price said that the pressure from the new fuel pumps is too high and to run a pressure regulator which took care of that problem. Just over 1000 miles on it and running progressive linkage now, runs better than it did with solid linkage.