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  #1  
Old 06-03-2018, 04:25 PM
doug1843 doug1843 is offline
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Default Need help identifying Dodge HD Truck and Engine

Hi everyone, this is my first post on this site. I am posting some pictures of an old HD Dodge Truck, with what I believe is a 413 C.I. Flathead Six. The flat on the block does not contain ANY of the letters/numbers that I have found anywhere on the net with regard to the "T" designations. There is no registration or serial number plate. Any ideas? Thanks.

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  #2  
Old 06-03-2018, 10:23 PM
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JVMopar JVMopar is offline
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From what I can find, you are correct. It's a 413.

Some 413 specs:
Bore& Stroke 4 1/16 X 5 5/16
413 ci
171 hp @ 3,200 rpm
424 ft. lbs. @ 1,200 rpm
8.5 to 1 CR
12 ports
head 9" X 30: 33 studs
Overall length Dampener to trans 48"
Bell housing to timing cove surface 33 3/4"
Pan sump to top of carbs 34"
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  #3  
Old 06-04-2018, 08:42 AM
doug1843 doug1843 is offline
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Thanks much for the info!
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  #4  
Old 06-10-2018, 09:42 AM
whtbaron whtbaron is offline
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That's a beast. I've never found one of those around here, which surprises me because you would think a few would have found there way into farm country, but I guess the farms and trucks around here was smaller in the day. What are your plans for it?
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Old 06-10-2018, 10:55 AM
doug1843 doug1843 is offline
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Since posting this, I ran across a youtube video of a 1946 2 1/2 ton Dodge firetruck, a WJ-57, and the engine and truck are most likely one of the smaller 12 port flatheads, like a 281, as the one in the video. What is visible in the video of the engine is the ONLY match I have found. The 413's I have discovered all had twin carbs and exhausts, while this has one carb and one exhaust outlet. I have a bunch of parts from the engine on ebay, in my store, arccoinsandautocollectibles, but if anyone is interested I'll sell through this site, if it is permissible. Thanks, Doug
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  #6  
Old 06-10-2018, 12:25 PM
whtbaron whtbaron is offline
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I've heard of a 331, but not a 281. Flat Head Engines: Plymouth-Dodge-DeSoto-Chrysler Six and Eight
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Old 06-10-2018, 04:51 PM
doug1843 doug1843 is offline
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Yep, 281 and a 306 school bus engine were also 30 inch flatheads with 12 ports. The 281 was normally a "T136" designation, 1946-47, in WJ 55-59 vehicles. 331 was a "T135" in 46-47 WK 65-69 and WR 65-69 vehicles. Info on the 281 and 331 comes from "T Flathead Six Engines" on the net. The info about the 306 comes from a guy who got at me on ebay who should be an administrator on a Dodge Flathead site. He knows his stuff.
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  #8  
Old 10-18-2018, 03:42 PM
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Ray Bell Ray Bell is offline
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I have seen a couple of trucks with these engines, and Tom (posting on 'inliners.org') has one at his home in northern Nevada.

He had a lot of discussion about that engine on that forum...

Big Six Pics | MOPAR | Inliners International Bulletin Board
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  #9  
Old 10-18-2018, 04:22 PM
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Ray Bell Ray Bell is offline
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Here are some pics...



This fuel tanker truck was in residence at the rail workshop at the Sierra Nevada town of Virginia City, while this is Tom's engine:



One half of the twin-carby setup:

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  #10  
Old 10-27-2018, 01:38 PM
whtbaron whtbaron is offline
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That would look great in an extra large speedster...
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  #11  
Old 11-12-2018, 05:36 PM
mooseandsqurl46 mooseandsqurl46 is offline
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Default Need help identifying Dodge HD Truck and Engine

Hi! This is my first post on this board. My understanding of the 413 flathead six is that it was only used in Dodge trucks for 1 year, 1954. They were a force to be reckoned with from what I've been told. My Grandfather owned one and, believe it or not, other truck drivers would come to my Grandfather and offer to run loads for free to get a chance to drive it. Nothing slowed it down, full load, hills, nothing. It was the only one in the area. Another man would borrow it from time to time if his truck was down for any reason. Even he said it was the fastest thing on the road. . The grillwork on the fenders was supposed to signify it was a 413, 6 cyl. Here is a pic if it when it was new, hope it comes through. It was sold to a company around 1960 that hauled mail. The truck, at that time, had around 200,000 miles on it.
Attached Images
File Type: jpg 537.jpg (38.2 KB, 16 views)

Last edited by mooseandsqurl46; 11-12-2018 at 05:44 PM. Reason: sentences
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  #12  
Old 11-21-2018, 03:44 PM
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Ray Bell Ray Bell is offline
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What a great looking thing...

Thanks for posting that.
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  #13  
Old 11-22-2018, 12:10 AM
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Do you remember this?

http://www.moparchat.com/forums/vint...light=flathead
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  #14  
Old 11-24-2018, 04:14 AM
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Ray Bell Ray Bell is offline
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Yes, I do, Dick...

A thread where many rejected early posts and kept on asking the same questions!

What a shame all the pics are gone.
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  #15  
Old 03-03-2019, 03:04 AM
bugmenot bugmenot is offline
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It been a long time since I've posted!
Some notes on the 413 engine...
They were produced only for the 4 ton model "Y" trucks 1953-1955.
1953 was the first 413 Dodge 4 ton truck engine.
Total production of the 413 trucks is approximately 3500 units for all years 1953-55.
281, 306, 331, 377, and 413 all are Nickel Chrome Molybdenum cast blocks..
Starting in 1950 the first 4 ton model "Y" truck came out with a 377ci. six that used twin carbs and dual exhausts thru 1952.
Then in 1951 all 306's, 331's and of course the 377 had the twin carbs and dual exhausts all factory installed.
Only exception was the 1951 thru 1953 B-3,4 model R bus with a 229" WB .
That model bus... Dodge's biggest.. had a 306 ci engine with only a single carb and single exhaust. I have one of these buses.. only one I've ever seen.
Parts for any of these "Moly Block" engines?...nope unless you spend years looking or have the parts made like I've done. There's a set of valves and valve springs on ebay currently. nothing more.
These "Moly Block" engines complete with accessories including the air brake compressor less trans weigh in about 1170 lbs.
I have four of these heavy series trucks with the 306, 377 and 413 engines.
Know these engines and trucks well.
Attached Images
File Type: jpg 4651529115_6ef691f689_n.jpg (33.0 KB, 11 views)
File Type: jpg Dodge B4YA big block.jpg (70.7 KB, 16 views)
File Type: jpg 413 Cali on Stand (3).JPG (41.2 KB, 15 views)
File Type: jpg B3YA Truck 377 Engine .jpg (70.2 KB, 16 views)
File Type: jpg Ya dodge truck engine copy.jpg (59.4 KB, 10 views)
File Type: jpg Bus 1951 306 started at Rons 1 31 2015 (2).jpg (75.2 KB, 17 views)
File Type: jpg 413 Engine Weight with accessories.jpg (22.8 KB, 9 views)
File Type: jpg 20210726_155100~2_compress13.jpg (69.0 KB, 2 views)

Last edited by bugmenot; 07-30-2021 at 08:10 PM.
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