Info needed: Help to identify my engine!

[Richard Nixon]

casting number

[Richard Nixon]

I think I might be getting somewhere! I have found PR engine numbers in this list:

https://hotrod.gregwapling.com/chev-...dian-chev.html

It shows the PR series as being assembled in Australia. If I understand it correctly my number is in a series of engines assembled in Melbourne (starting from PR3849349) This shows the engine was in a C60S (Model 2844200538M)

Grateful if someone can confirm my theory!! If right at least I know its a 216 engine block!!

[Grant Bowker]

Thank you Richard, that's the listing I was looking for.

[Lynn Eades]

Just for your info, the 235 has a 3 15/16" stroke with the 3.5" (same) bore size as the 216 cu. in.

[Paul Singleton]

I found this reference this morning, unfortunately the link is dead to the source. The post was from 2007.

The casting number 839253 appears to be a Canadian 1940-1945 Block (info I have from David Hayward). I have a unique Canadian only casting # on my 1938 216. Apparently GM Canada had 2 engine plants. The one in Oshawa produced casting numbers the same as the US. The one in the Windsor area (Walkerton maybe?) used a different casting number.

[Richard Nixon]

I finally got to the workshop to take photos of the casting numbers on the head and the date code on the block.....

[gjamo]

Refer to this discussion.
https://www.tm9-801.com/forums/viewtopic.php?t=1778

[motto]

Originally Posted by Lynn Eades

Just for your info, the 235 has a 3 15/16" stroke with the 3.5" (same) bore size as the 216 cu. in.

Hi Lynn
According to my data the Chev 235 unpressurised (WW2) engines had a 3-9/16" bore. 3-15/16" stroke is correct. These figures came from TM 10-1557 for 1-1/2 ton 4x4 truck (Known as the Yankee Joe in this country)
216 engine was 3-1/2" bore and 3-3/4" stroke.

David

[Lynn Eades]

David, you of course are correct. I should not make statements based on memory. Back to the book, I see the 216 is described as "standard engine" and the 235 as"Heavy duty engine".

[Alastair Thomas]

We have a F60S LAAT which came with the 21 stud 3.6 litre engine.
This engine lacks power probably due to some fundamental error during a previous rebuild such as the cam shaft being incorrectly timed.
We recently had the chance to buy a 24 stud engine in reasonable condition. However, on disassembly it turned out that it too is a 3.6 litre engine. We thought we had measured it incorrectly at first but found out that Ford of Canada did make a batch of hybrids.
Does anybody know if it can be bored out to 3.917 cc? We are told that this is not possible but that information may be based upon the blocks cast for the 3.622 cc engine in 21 stud form.
Confusingly it is stamped R3917 but callipers do not lie!
So far we have not found any other markings on the block other than a cartouche on the bell housing where we expected to find the engine number. I interpret this to mean that it is indeed a 3.6 litre engine.
Can anybody help please?
Alastair
F60S LAAT
Lynx I MkIII*