Spark plugs ?

[70Charger493C.I.]

Hey, I have 440 EZ-1 Maxx Wedge Intake 275cc Heads
CNC Max intake and bowl port. Fully ported heads.. and i was wandering what kind of spark plug to run.. its a 493 stroker.. indy head 650HP.. just want a good hot burning plug.. no nitrious will be sprayed on this motor.. Champion ? AC DELCO ?. any suggestions would.. i want the best..

 

[Meep-Meep]

I like Nippondenso because of the U groove - lots of sharp corners to initiate a spark. A little known fact is ND makes Accel plugs.

Autolites and Bosch platinums were good to me as well.

 

[dantrap]

I like the NGK V-Power -9, part number R5671a-9, no nitrous. They say for a 11.5 to 12.5 comp. ratio. I use the dash 10 (-10) with nitrous. Good luck.

 

[daredevil]

autolite racing, a true race plug with a cut back electrode

 

[Gary_gtx67]

What about the new E3 plugs anybody use those?

 

[t67power]

Auto lite racing plug 3924
Buy them at advance auto for half the price of sumit or jegs.
They have a cut back electrode.
It's a old racers trick and it's already done for you.:grin:

 

[69HEMICORONETR/TCONV]

Zex

 

[CtownChris]

Thanks for the link. Not gonna waste my money on high tech mumbo jumbo.
Looks like NKG G=power will find a home in my wife's car soon.

 

[69 Runner]

Also, I would think the plugs would give different results in different motors.

 

[63RedFury]

I have always used Champions in my Mopars from slant 6's to 440's and have had no troubles ever.

 

[69HEMICORONETR/TCONV]

Also, I would think the plugs would give different results in different motors.

I Agree.