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Post Info TOPIC: 327 engine numbers - Canadian 67


Canadian Poncho Superstar!

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327 engine numbers - Canadian 67


Somebody just sent me an e-mail regarding an unconventional engine number on the front of his 67 Canadian Chevelle with a 327. Normally I would expect something like, " K0927EO " but as I understand, earlier GM Canada blocks used a more cryptic sort of code. Let me simply paste the text of his email here so you can see for yourself:

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"Hello,
I really hope you can help me. I have an engine code number that I
can't figure out. Canadian 67 chevelle,327 CID.built in Oshawa Ontario.The
number is on pass side front of engine, by the water pump, it reads 81
663784 0.the 4 is a maybe It's very hard to see.have you seen this before?
What does this decode as? Thank you in advance. Your site has been very
helpful to me In preparation for a restoration,on my chevelle"

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Is this an earlier Canadian 327 (or 283) block? It is not known if the engine is original to the car. Perhaps it is a rebuilder code unrelated to GM.

Any thoughts would be appreciated.



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67 Chevelle Malibu Sport Coupe, Oshawa-built 250 PG never disturbed.

In garage, 296 cid inline six & TH350...

Cam, Toronto.


I don't judge a man by how far he's fallen, but by how far back he bounces - Patton



Poncho Master!

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Posts: 1628
Date:


The '81' is the key here and is one of the unique Canadian numerical 'suffixes'.
Unlike the US, here in Canada we used the same engines for different applications adding pilot bushings etc when necessary.
For '67 and up model years, Canada went to the US letter style suffixes but may've used up leftover '66 numerical coded style engines early in the year?
That said, the most common use of the 81 coded engine was 327/275Hp put in '66 Canadian A & B-Body cars.

~ Pete



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Canadian Poncho Superstar!

Status: Offline
Posts: 4505
Date:

Thanks for the info Ghost! I was kinda thinking it was a case of a pre-67 Mackinnon engine. I was digging through old images I have downloaded over the years and found one that I got here back in 2012 for 1966 Chevelles. It was a Monthly List of Vehicles Shipped, the old documentation that VVS used to provide. It isn't a clear scan, but even though it is indistinct I can make out variations as 8 & 9 numeral engine codes. The big block cars have the conventional Tonawanda codes.

img013caminokidM.jpg



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67 Chevelle Malibu Sport Coupe, Oshawa-built 250 PG never disturbed.

In garage, 296 cid inline six & TH350...

Cam, Toronto.


I don't judge a man by how far he's fallen, but by how far back he bounces - Patton



Canadian Poncho Superstar!

Status: Offline
Posts: 4505
Date:

You know Pete, what you say sounds very plausible. While Chevrolet in the U.S. was cranking out engines for just Chevrolet, in Canada the St. Catherines plant was cranking out engines for Chevrolet, Canadian Pontiacs, and even engines for outside of GM, namely Studebaker in Hamilton, Ontario. Of course Studebaker packed it in during 1966. That may have had something to do with the revised engine coding system for 1967, plus the gradual harmonizing of the U.S. & Canada product lines, and even the requirements for engines to have serial numbers as an anti-theft measure.



__________________

67 Chevelle Malibu Sport Coupe, Oshawa-built 250 PG never disturbed.

In garage, 296 cid inline six & TH350...

Cam, Toronto.


I don't judge a man by how far he's fallen, but by how far back he bounces - Patton

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