Durant Motors Internet Forum
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My goodness sakes for old engine experts you sure were guessing about something simple. 
Doesn't everyone know about Durant, Star, Frontenac, DeVaux, Locomobiles ? Everyone knows Henry Ford but few know Billy was GM founder and Chevy. GM acquired Chevy 1917 but was on its own before that when Billy bought the Little Car Co and changed its name to Chevy.
Like most Americans, bet you didn't know although Durant Motors failed early 1931, we continued the Durant in Leaside under Dominion Motors into 1933. Also the all Canadian Frontenac July 1931 into 1934. Dominion Motors officially ended June 23 1944 when the last section of their factory and the remaining lands was sold to Frigidaire without enough funds left to pay shareholders. They also gave up their Charter as Dominion Motors Limited. That ended the only all Canadian Car Co since. Continental Motors was long gone before that and only making Continental engines.
Ironic about Frigidaire as that was another of Billy Durant's purchases by buying an ice box co and changing its name to Frigidaire. If I remember Frigidaire became under GM co's, which Billy founded GM 1908. Sort of full circle.
I forgot to mention there should be a serial number stamped into the engine at back of manifold area. This would have had a Stromburg U1 carb. The 22A had a U2 or W8A. Under Dominion mine is Tillotson J4A same as some Frontenac's but can be a W8A.
If you are collecting info we used
W4 1922 - 24 Star (4 cyl)
A22 1921 - 26 Durant (4 cyl)
B22 1922 - 24 Durant (6 cyl)
W5 after the W4 in Star and Durant to 1929 (4 cyl)
14L 27 / 28 Star and Durant (6 cyl)
15L Star and Durant after the 14L (6 cyl)
15U 70,75 Durant and 1930 617 Durant. This 617 is half 1930 body / fender wise but pre 30 chassis wise. (6 cyl)
W8 407 30 - 31 Durant (4 cyl)
22A 30 - 32 Durant and 31 - 32 Frontenac (6 cyl)
32A some 31 - 32 Durant / Frontenac's after 22A (6 cyl) but also 685 Frontenac and 633 Durant
1933 C-400 Frontenac (4 cyl) same as Continental Beacon with C-400 engine.
1933 C-600 Frontenac (6 cyl) same as Continental Flyer with C-600 engine.
Presently its out for lunch what the 1933 Continental Ace and corresponding Frontenac Ace used. The one example from Kingston Ont of a Fronty Ace now the US, has a 1931 Hall 40 motor used in DeVaux's, with Hall ground off the block ?? This engine is a 40 AA601. The casting date is 4/21/31. More speculation that Dominion Motors and Continental Motors were using up the left over 1931 motors of DeVaux - Hall Motors and Durant Motors
That site I mentioned before gives you an idea of when cars were produced and I should add Durant was not made 1927 year, only Star.
Should the engine be for sale across the river, Denis can use DMAC forum to post it. Transmission with straight cut gears is same for 407 or 6 cyl 22A engines in models E (Fronty) 407, 611, 614, 618 Durant's. However E, 670, 685 Fronty and 618 Durant have helical gears. Yes E and 618 can be either.
Confusing you ??? Get one of Billy's cars or off shoots and join the rest of us.
Where Are You From? Ottawa Ont
Do You own a car built by Durant? Dominion built 1932 614 Sedan
I agree with you about "These old parts catalogs are rife with inconsistencies, omissions and contradictions" You can put 4 different companies books / catalogues side by side and they don't match for same model and items. Lot of people use Branham's "bible" as a guide which is not accurate either and only carry US vehicles. Co's provided assumed to be issued models and spec's for future vehicles so Branham's could issue the books, then Co's turn around and not produce the model that year or ever or different spec's.
We as a club are trying to sort out what was produced, when and what info. Not an easy task. There is nothing solid in stone about any of the Durant empire and off shoots of vehicles to say your car is 100 % as it should be. Just got an email this morning from BC with a fellow working on an 1928 M2 coup. That should have a 3 speed tranny but its a late issue when 4 speed was being thought about for another model and factory put a 4 speed in it instead.
How about factory brochure for a 1930 613 Durant. Brochure exists, model never produced.
Ad for a 614 with Pullman seat feature. Never happened but I pulled it from a US paper, by accident.
Lots of catalogues carry the 620 and 621 Durant produced US by Lansing. To our knowledge Lansing was out of business and only US plant still making cars 1931. Its last model the short lived 619 and production stopped summer of 1931. We never made the 619 here and it was said never sold here. Proved that wrong with an ad out of the Ottawa newspaper Aug 1931 introducing the 619 after US stopped. My theory unsold US models shipped to Leaside to be sold here by Dominion Motors on behalf of Durant Motors. Bottom of ad says Durant Motors Ltd, a Division Dominion Motors Ltd, Toronto. To further confirm the 619 not being built here our after market catalogues do not list any parts for it, US do. Same with Ace since not made here but imported only, and Frontenac name slapped on it.
Again what I was saying that factory's could have put anything in vehicles to shove cars out the door. That Fronty Ace with 40 Hall engine an example.
Bet you can't find anything on a 633 Durant 1933. Its still out to lunch puzzling that one out if 32 or 33. No sales brochures or ads and not in any parts books other than our Leaside after market catalogues. Yet a coup and a sedan exist. Its all 32 Frontenac except hood, rad shell, hub caps, Durant crest and VIN plate info. Body / fenders 32 680 DeVaux / 685 Frontenac, but with Frontenac 32A engine, the DeVaux has 40A engine. Sounds simple the 633 should have a 32A engine also per after market. Sedan does, coup has a C-600. More using up of parts with failing co's ?
The repro Chilton Interchangeable Parts Handbook lists the 621 / 622 with 22A engine. Being US it doesn't carry our Canadian Durant models not made US or Frontenac's.
That indicates the Ace as having a 41A
It indicates the 70 as having a 20E engine
No Durant listing for a 14U
Durant motto should have been "No Two Cars the Same" not "A Good Car". I have corresponded in the past with Jon the Carb King about our vehicles and he said there was one worse then Durant to try to figure out anything. Can't recall what that auto co was. So we are not the bottom of the barrel but very close.
Where Are You From? Ottawa Ont
Do You own a car built by Durant? Dominion built 1932 614 Sedan
Well hi Bud ... can finally update some of the previous mails.
1933 Ace did use what was called a 41A on engine plate but in fact the block has 40A casting with dates April 1931 and Hall name ground off. This we knew now from info / pic from the owner of five Ace's. It also updated and brought to light the Frontenac Ace which was not made here but imported and Canadianized a bit, had its own model and vin. US 81 / Can 91. Assume De Vaux ordered too many blocks 1931 and Continental Motors who took over De Vaux 1932 used them up.
DeVo was not made 1935 but one was 1937 based on the 1934 Continental Red Seal (Beacon) That car is in S Africa with C-400 engine used on Beacon (US) and Frontenac C-400 in Can.
Finally tracked down your info some of your books claimed the 14L was used on Durant and 9L was used on Star. In fact 14U was used on 1926 - 27 B60 Flint and 9L was used on 1926 - 27 Z18 Flint. So partly correct they are tied to Billy Durant, just wrong make / Co. To copy info .... The Flint Motor Car company was created in July 1922 shortly after Durant's purchase of the Willys-Overland factory in Elizabeth, New Jersey.Production of the E-55 began June 1923. Three new models, the B-60, the E-80 and the Z-18 were introduced in 1926. 1927 was the last year of production for the Flint. ....
Like we said before books of the time and later are full of errors and omissions. Our own aftermarket catalogues have that with models missing or info incorrect.
Oh yes about Jon the carb king who never heard of the carbs used in our Canadian Durant's nor a car called a Frontenac, the bottom of the barrel was Graham to unravel, with Durant next, he said.
Where Are You From? Ottawa Ont
Do You own a car built by Durant? Dominion built 1932 614 Sedan