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Canadian Poncho Homepage -> Canadian Poncho -> 65-70 Full Size Power Train Tech Forum -> Could these plugs be original 1969 spark plugs ?
Post Info TOPIC: Could these plugs be original 1969 spark plugs ?
ABC123


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Could these plugs be original 1969 spark plugs ?
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I'm going to replace these plugs but I am not going to throw these plugs away.

I showed the old plugs to an engine builder today he was amazed by the quality of the construction of the old plug.

They weigh a lot more than the NKGs

They are gapped a tight .35

004a.jpg005a.jpg

 

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What do you think ?

 

 



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North


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They are from that era but I don't think they used the "n" shaped plugs in 69 chevy engines.

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John

Montreal 

29 1969 American Pontiacs

and a 1969 Canadian 2+2 Hardtop
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cdnpont


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Internet tells me 64-70. 4 green rings and a "Star" center electrode. so...maybe?



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North


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I know that US Pontiac's switched to the "N" shaped plugs midway through the 71 model year.

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John

Montreal 

29 1969 American Pontiacs

and a 1969 Canadian 2+2 Hardtop
unruhjonny


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North wrote:

I know that US Pontiac's switched to the "N" shaped plugs midway through the 71 model year.

 huh?

Heat ranges aside, USA-Pontiacs used R45S as the standard plug for 1969 through to 1971.
They swapped to the R45TS for 1972

I only ran across these "N" plugs a short while ago, but so far I have only observed ones which would be comparable to the "T" or "TS" plugs.

My June 1993 Delco spark plug catalog does not list a R44N for any 1969 Chevrolet;
The closest I can find is a 1968 Chevelle  that lists a 44N or 44XLS for the 396 265hp/325hp engines.
(My catalog is a USA printing, so not Canadian Poncho's are listed).




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4SPEED427


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Canadian Pontiac parts book.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
seventy2plus2


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I have 4 green stripe R43T & R44T plugs for my 1970 454's. Bought them in bulk on ebay years ago.

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