spark plugs

I have been running autolite plugs in my blown bbc, but finding it difficult reading the heat.Any suggestions on other mfgs with an easier to read discolouring ground strap and threads? Thanks,DAVE

 

NGK's have a bright cadmium coating on them and it really helps give you some contrast.

 

I learned on NGK's and thats all I've used in blown motors. They work good for our app and are easy to read.

 

ditto, exact same thought from me

 

BB Chev plugs

we use the NGK 5671-10's and have never had a problem, they are cheap to. Cheers Graham

 

I cannot find part#5671-10 it does not show up at NGK any ideas?

 

Try R5671A-10

 

thank you all, Jegs has them @ $2.69 each.Putting my order in tomorrow! DAVE

 

Maybe try these guys, if you order enough they go down below 2 bucks (I think)

http://www.monarchproductsinc.com/

Just ask for a quote before you purchase, its all automated.

 

For all NGK needs contact Jim at 517-369-2001 or email to jim@snowcitymi.com

 

NGK's are really easy to read in my engines, but they don't last for crap. I played a little game to see how long I could keep a single set of Autolite Racing plugs in my CIFCA funny car engine without falling off in performance. It was 316 passes.
So I read on the dyno, then put NGKs in on the track to see how the tune-up differs from the dyno, then back in with AR's and run till I feel really guilty, not looking at the plugs much at all. Once I get to where I want, I read the onboard computer.

 

Sorry, that is not quite true--I cannot get the race series plugs. B or BR series 9 or 10 can be had for $1.45 plus shipping. JW