I think dodge truck motor in a car

[BenFrog]

Hi, I'm Ben, I'm 26 and I'm from Canada. One day I bought a 1937 Chrysler Royal and a 1936 Plymouth P-4. Now I guess you're wondering why I post on the truck forum. As the title says, I tried to identify the motor in my 1937 and I knew from the start that it was not original.

 

First off, I searched the motor vin. If I saw correctly on the t136 site, it's from a 1955 Dodge car. Since the motor is Canadian, it's 25" long and I'm not sure if the vins are coded the same way.

 

 

So, at that point, I was sure I had a 218 or a 228. It was time to check the stroke.

 

After that, according to a lot of forum threads, I removed the pipe plug over cylinder #6 and measured the stroke. I was a bit surprised when I read 4 1/2" on the tape. So I dug a little bit deeper and found out that I may have a 251 but i'm really not sure.

 

My question is: Is there another way to tell the motor size other than removing the head?

[Plymouthy Adams]

while you do have a Canadian Dodge engine by the mere stamping on the engine and the fact it is also ending with the letter C...However I do not have much on the Canadian displacements..I do know that per my Motor manual in '55 the sister car here in the US was only one engine size in the L6 and that was 230...could well be the that the Canadians had also went to a single displacement for the L6 with the introduction of the V8.  Bill Watson has all the Canadian facts on the cars and engines and hopefully will fill in the blanks..my guess would be the 218 but then, that as stated is just a guess.

 

As for engine size...mostly the block bores were the same and the crank stroke marked the difference in the L6's of the era...your stroke as measure by access hole #6 cylinder should tell the story..in the US, the 4.375 was 218 and the 4.625 would be the 230..again I have little info on the Canadian engine stroke and bore

[55 Fargo]

D 54 25 inch Canadian engine is most likely a 228, or maybe a 251. Bill W can ID this for sure.

This engine could have very well been a swap in, or even bought as a rebuilt unit from either Piston Ring or Prairie Reman in Winnipeg. These 2 companies had these engines as a staple item for many years....

[BenFrog]

Thanks, that's what I thought. Since the stroke is 4 1/2", that's why I guessed it was a 251. Was there 251 in Canada in 1955?

[55 Fargo]

Thanks, that's what I thought. Since the stroke is 4 1/2", that's why I guessed it was a 251. Was there 251 in Canada in 1955?

Yes there was, for Dodge and Fargo pickup trucks, and a lot of farm and industrial equipment. I do not know if they used the 251 or 228 in the Dodge and Plymouth cars from 1955-59.

PM Bill Watson, he is the resident expert on this topic.

251, 3.55 gears in the rear end and that old car will be flyin down the Trans Canada Hwy...

[BenFrog]

Hahaha Nice to hear! I will PM Mr. Watson for more infos. Thanks

[BenFrog]

Also, what kind of carburator does a 251 had say, in a dodge truck? I have a Ball & Ball 1 bbl cab on mine.