No. The desoto, chrysler & dodge are different but i am unsure about the plymouth. Nothing interchanges. the chrysler had its' bellhousing cast as part of the block thru '55 i believe, the last year(s) of the 331 didnot have the bellhousing cast into the block. the 354 never had the bellhousing as part of the block, some stuff will kinda interchange with the 392 but the 392 has a taller deck height so intakes won't interchange. Dowle pins are different from 331 to 354 so the heads aren't a direct swap either. I've never been inside a desoto but they had the bellhousing as part of the block until mid 50's as well.
There is a LOT of first generation Hemi tech here. Here is the search. It should answer all your questions and many you haven't even thought of yet. http://www.jalopyjournal.com/forum/search.php?searchid=7366437
there were 13 different hemis and basically, nothing interchanges Some like the 354 and 392s do but most do not
I just bought 2 331's, one is a 55 and one is a 56. Both have trannys attached, one auto and one 3 spd. I will pick them up in 2 weeks, and post numbers then. one has factory chrome valve covers with a 4 barrel, I believe that one is the 56. Enough parts to build 2 1946 dodge trucks came with the hemi's. Not sure what to do with the trucks, they are really clean. Everything has been stored inside for the last 20 years, and the hemi's run.
Tim's got you covered. Mine was searching for "HEMI Tech" (with quotes) in titles, not entire thread. You go up to the top and use the search function. With tim's post, you can see that all the threads have that in the title.
That was what i was thinking as well but that one plymouth with the big swoopy fenders popped into my head and i thought it came with a hemi as well and i thought i remembered seeing a funny logo cast into the blocks that represented chrysler, dodge, plymouth and desoto - it was like a square divided into 4 smaller squares with a letter representing each division. I just looked at a 331 and a 354 but didn't see it. I was thinking it was on the rail around the lifter galley opening. But then again i need some serious rest and am more than a little goofy.
Some corrections needed to above post. Generally, '53 is the last of the Chryslers with the integral bellhousings, though there are reports of some early '54 models with that arrangement. 392 are higher deck, but the heads were altered on the intake side and 331/354 intake manifolds do fit. However, there may be some port mismatch depending on the year model of the manifold. Dodge and Desoto models DO NOT have integral bellhousings on any year model, only Chryslers were made that way. Dodge 241/270/315/325 and Chrysler 331/354 blocks ...can be fitted with either hemi or poly heads. Desoto 276/291/341/345 were hemi only. Desoto 325 poly head engines were, in fact, Dodge 325 poly models. Ray
A 55 Chrysler will be a 331 cu in and a 56 will be a 354. You can turn a 331 into a 354 by boring the cylinders 1/8" and using stock size 354 pistons. This was done a lot in the old days because stock size pistons were cheaper than oversize.
I am currently in the process of a doing a 52 desoto with a 276 hemi and the bell housing is not part of the block
I did find 1 part that fits both a Dodge & Chrysler Hemi's, that being the timing cover. I never would of thought but they do as I used my extra 354" Chrysler one for the 241" Dodge that was missing.
If you want correct info on an early "Hemi" PM TR Waters, no guesting and posting of bad information.
I was checking out a 55 Chrysler NewYorker at a show that had chrome valve covers. The owner bought it from a museum in PA. The chrome valve covers was said to be a factory option in 55.
Thanks Ray for clearing up some of the info. To many incorrect answers given on these posts. The only chrome valve covers that I know of MAYBE were Chrysler marine engines, but I'm not sure. People post info that they see on a car and think it is factory. Also 55 Plymouth short block ( maybe other years too) can be fitted with Dodge Hemi heads. need to change pistons. I (believe) Desoto was all unique. Ago
The bell- housing mounts and some of the timing covers to my knowledge are the few things that inner change. Not sure about distributors. I have a poly block out of a Chrysler Windsor that is by numbers in the book, should be a 331 but is a 301. Ago
Yes, thats correct, but thats not what oj asked. He asked if Plymouth made hemis, the answer is no. Dodge heads will fit all the plymouth polys up to but not including the 318.
You are too specific in your answer, i e 318. Plymouths built on Dodge Hemi blocks, 241,259, & 270 can be converted. "A" Polys 277,301,303,313,318 can't(no on the Dodge 326 also).
The only thing that will interchange between the Dodge, Desoto, and Chrysler hemis besides the transmission adapter is the timing chain sets. That is for the cams that don't have the extended snout that used a large nut to hold the sprocket to the cam.
Someone said no Plymouth Hemis (before '64) and while none were officially made, the '55 Plymouth V8 block will take Dodge hemi heads. Buddy has a big Dodge M53 or similar truck chassis with a V8 hemi in it, so I ran the number on the block and it comes up '55 Plymouth, not sure if it's a 259 or 270. 259 was a Plymouth only displacement. So when you ask "are they the same block" it may be what you're hearing is the 1950s Hemi motors, while each make was different, some of them the wedge head and hemi head did use the same block. DeSoto is the exception to this, their Hemi so far as I know only was ever made as a Hemi.
The Jalopy Journal
