AC Delco spark plugs
 

NOS set of AC Delco spark plugs, R43's, with the 4 thin green lines - you know what they look like! https://www.yenko.net/ubbthreads/imag...ns/naughty.gif

$75 obo

Re: AC Delco spark plugs
 

Any chance they're R43T?

Re: AC Delco spark plugs
 

I'll go check....

Re: AC Delco spark plugs
 

Marlin you have a PM . Doug https://www.yenko.net/ubbthreads/imag...lins/beers.gif

Re: AC Delco spark plugs
 

They are R43's no T or N that I could see!

Still for sale!

Anyone know the full application for the R43's - other than the Z28's?

BTW: I have a 'Satisfaction Guarenteed' policy with the parts I sell. If you buy them, and are not completely happy, you get your money back - including return shipping!

Re: AC Delco spark plugs
 

Anyone know the full application for the R43's - other than the Z28's?

Hi:
According to the ac link one pile of applications. Take a look.Tks joe
http://198.208.187.182/internet/Vehi...A&pageno=5

Re: AC Delco spark plugs
 

Thanks! Someone had asked if they were for BB Chevy's, I wasn't sure. It looks like they are for SB Chevy's only.

Re: AC Delco spark plugs
 

[ QUOTE ]
Thanks! Someone had asked if they were for BB Chevy's, I wasn't sure. It looks like they are for SB Chevy's only.

[/ QUOTE ]
Hi:
I know my 66 427 takes 43N but that is a different plug. I cannot seem to get that one to come up.Perhaps too old.
take care
Joe

Re: AC Delco spark plugs
 

Marlin....PM sent

Re: AC Delco spark plugs
 

I have lots of 43Ns. I don't use them because they're too cold for a street car (no matter what Chevy said) https://www.yenko.net/ubbthreads/imag...mlins/wink.gif Only the Covette fanatics want them because NCRS actually pulls the plug wires to see what they are. Points equals money later. https://www.yenko.net/ubbthreads/imag...lins/frown.gif
Verne

Re: AC Delco spark plugs
 

R43N is the same heat range as the R43's. The N is for a BB because it takes the longer or extended threads. I believe 3/4". I like the R44S or the R45S for my 69 Z. They run nice and are an original AC Delco plug. S means extended tip. I bet the 44's or 45's would work good in the BB too. https://www.yenko.net/ubbthreads/imag...ins/3gears.gif

Re: AC Delco spark plugs
 

[ QUOTE ]
Marlin....PM sent

[/ QUOTE ]

SOLD!

Re: AC Delco spark plugs
 

My AC book says:

N = 3/4" (19 mm) reach, 3/8" (9.5 mm) thread length