Technical Dodge Hemi cam interchangeability

Quick qun Hemi guys - will a 1956/57 Dodge 315/325 Dodge Hemi cams work in 1956/57 330/341 Desoto Hemi engines?

Thanks !

 

I don't think so, but will leave it to the Hemi experts to qualify it. I am conscious of the fact that Chrysler exported (and/or foreign-built) certain models of Dodges and called them DeSotos. And made more vice versa -- and more vices and versas. And you're asking from Australia . . .

 

I think the three early Hemi blocks are different dimensionally all the way around, Chryslers are the biggest, the Dodge is a bit smaller and the DeSoto the smallest. The cams are different lengths so they won’t interchange between the Dodge and DeSoto. In addition if a cam is from a low deck engine cam timing will be screwed up in a tall deck block and vice versa.

 

Only tall deck dodge hemis and polys

 

. . . but is his Australian DeSoto a Dodge?

 

I posted the info above from memory but there is an error, the DeSoto is larger than the Dodge. Rocker shafts tell the tale, the DeSoto shafts measure 18 & 5/16” and the Dodge are only 17 & 3/16”.

 

Size wise,,,,,,Dodge,,,,,Desoto,,,,,Chrysler,,,,,,small to large in that order .
Nothing,,,,,almost nothing interchanges .

And he did ask about the Hemi engines specifically,,,,,,to my knowledge all Hemis were branded as their respective divisions,,,,,,no rebadging for other countries .

Tommy

 

Fellas its a Desoto Hemi 330 tall deck; I'm aware of the block/size/borespacing differences between Dodge/Desoto/Chrysler, but my question was specific to the larger Dodge/Desoto cams compatibility.

I remember reading somewhere that the bigger Dodge Red Rams and the tall deck Desotos cams were interchangeable.

Maybe the memory aint what it used to be

 

No. The bore spacing is different between the divisions. A cam for a Chrysler is longer than a Desoto, the Desoto is longer than the Dodge.

 

Trendz , I guessed that this would be the case, thanks for the confirmation.

 

It’s not your memory,,,,,they just won’t fit .
Almost nothing,,,,,,,interchanges !
Maybe a few bolts and such,,,,,,a few odds and end parts,,,,,nothing of any consequence .
The only thing those two engines have in common are they are both Hemi tall deck blocks,,,,,still doesn’t interchange .

Tommy

 

. . . but what I was (trying) to say was that Chrysler sent many Dodges overseas badged as DeSotos.

Maybe just measuring the length of the cam might confirm that the DeSoto engine is really a Dodge.

(Yes, I knew all along about the interchangeability, but maybe a Dodge cam will fit an Australian DeSoto. Now we gotta find someone who knows the length of the hemi's cams.)

 

Here are a few pics of my Desoto cam,,,,it measured approximately 20 1/5 inches,,from the rear journal up to the front behind the plate.

Tommy

 

Each company made their engines enough different the cams will not interchange.
The bigger issue is that they are ground on different lifter bank angles.

 

If you are sure about the ID of the cam & the block the answer is no. I don't think any hemis were sold in Australia, believe all were 6s in that timeframe. Engine was probably imported later.