I'm useing Edelbrock Performer RPM Heads and need a plug recommendation.Edelbrock saya use Champion RC12YC but
I'm NOT a fan of champion plugs.Any suggestions,Can somebody
cross reference the champion number? Thanks Bill

 

I don't know too much about all the different kinds of sparkplugs out there, but whenever I got my new plugs a few months ago I was recommended, to my surprise, standard AC Delco sparkplugs (not the Rapidfires). That's with stock heads, though... you probably want to get more feedback on this. Try searching the archives.

 

I run accel high performance header plugs. I love them, they run well, plus give me a little extra clearance on my headers.

 

First I've used ACCELL shorty plugs before but the Edelbrocks use a gasketed plug and ACCELL does not make any in the shorty style.
Second,I agree AC Delco should be the way to go on factory
engines but I have a 11:1 race engine and was going to use NGK plugs but no one I've talked to can cross reference the Champion number with NGK and give me a plug part number.

 

I just did a quick search on Google and came up with this site:

http://www.brownandwiser.com/plugs.html

Apparently, the Champion "RC12YC" plugs are the same as the NGK "BCPR5ES" plugs. Hope this helps.

 

I and others on here have tried those Accel header plugs and they suck. The tips that the wire connects too, always come loose.

 

I usually just use some sort of a single platnum(sp?) plug
-Ben

 

Regular AC's work well in my application. I've run Bosch Platinums and I hated them.

 

Maybe youre wires just sucked and thats the reason they came off your plugs. I have had the shorty's for about 12,000 miles and my wires have never came off of mine. I love them, and it makes it a whole hell of a lot easier to get them in if you are lacking clearance.

 

They came loose on me too.

 

i'm running BOSCH platinum+4 and its ok, never had any trouble, my ignition is an accel super stock, installed 2 yesrs ago, inspected last week and still looks like new, no need to gap them nor to even clean them. i like it.
fernando.:hail:

 

I've been running a set of champion rs12yc's. I do have a set of Delco r45's waiting to go in, to see what kind of improvement I get.

EDIT-- forgot to include my combo. I'm running a 416 headed 305 with a crane energizer 260 cam, with a Holley 600.

 

Well, I use NGK UR5's. They are shortys, cheap, one step colder then stock and fire off my 150 NO2 no problem. I do side gap them though.

Auggie